A roundup of some of the most popular but completely untrue stories and visuals of the week. None of these are legit, even though they were shared widely on social media. The Associated Press checked them out. Here are the facts:
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Social media posts misconstrue Biden’s joke about selling ‘state secrets’
CLAIM: A video shows President Joe Biden openly admitting to selling state secrets.
THE FACTS: Biden was making a joke at the outset of a roundtable with India’s prime minister. The video clip circulating on social media cuts off Biden’s remarks just before he makes it clear it was in jest. The official White House transcript of the comments and a longer version of the video shows the president immediately said he was only “kidding.”

Evan Vucci
FILE - President Joe Biden speaks with India's Prime Minister Narendra Modi and American and Indian business leaders in the East Room of the White House, Friday, June 23, 2023, in Washington. On Friday, June 30, The Associated Press reported on a video clip being shared online that shows Biden talking about selling “state secrets” but omits when he made clear that he was joking. (AP Photo/Evan Vucci, File)
But many are sharing the truncated clip of Biden seated at a long table with Indian Prime Minister Narendra Modi and prominent business leaders at the White House for a roundtable event. “I started off without you, and I sold a lot of state secrets and a lot of very important things that we shared,” Biden says in the video as Modi and others are seated around him, smiling and laughing. Other social media users even included a screenshot showing part of the official White House transcript of the Friday event.
“Joe Biden’s brain is going and he’s literally admitting his crimes out loud,” wrote U.S. Rep. Marjorie Taylor Greene, a Georgia Republican, in a widely shared tweet that included the 15-second video. But the clip and screenshot omit Biden’s very next sentence. “Now, all kidding aside,” he said, according to the transcript and a longer video of the remarks posted on the White House’s YouTube page. “We’re teaming up to design and develop new technologies that are going to transform the lives of our people around the world.”
Spokespersons for the White House declined to comment, but an AP reporter who attended Friday’s roundtable confirmed Biden made the joke at the beginning of the event as the president and his guests were already seated at the table and reporters were beginning to file into the room.
Nick Dyer, a spokesperson for Greene, argued Biden shouldn’t be joking when he’s been accused of “the crime he’s ‘joking’ about.” Greene and other House Republicans have been touting an internal FBI document containing an unverified allegation of Biden and a foreign national “relating to the exchange of money for policy decisions.” But Ian Sams, a spokesperson for the Biden administration, dismissed the claims as a “fact-free wild goose chase,” noting the Justice Department, under former President Donald Trump, looked into the allegation and deemed it “not credible.”
Meanwhile Trump, who is among the Republican candidates for president next year, has been charged with mishandling classified information, including sharing confidential military attack plans to a writer and others at his New Jersey golf resort in 2021.
— Associated Press writer Philip Marcelo in New York contributed this report.
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A Bill Gates-tied mosquito project is not responsible for recent US malaria cases
CLAIM: Rare malaria cases reported in Florida and Texas recently were caused by a disease-control initiative backed by Bill Gates that involved releasing genetically modified mosquitoes in the U.S.
THE FACTS: The Bill & Melinda Gates Foundation doesn’t finance any modified mosquito release projects in the U.S. And experts say the types of mosquitoes that are used for that initiative in Florida are not capable of transmitting malaria.
The false claims followed an announcement by Centers for Disease Control and Prevention that the U.S. has seen five cases of malaria spread by mosquitoes in the last two months — the first time there’s been local spread in 20 years. There were four cases detected in Florida and one in Texas.
One tweet reads: “Malaria has been detected in Florida and Texas, CONVENIENTLY two states where Bill Gates was experimenting with GMO mosquitoes.” But that theory twists the facts in more ways than one. First of all, while the Gates Foundation has provided funding and support to combat malaria, it has not funded any work involving mosquito releases in the U.S., a spokesperson said. The foundation has indeed supported biotech company Oxitec, which is releasing modified mosquitoes in Florida as part of a disease-control initiative, though a spokesperson for the company said its U.S. work is not funded by the Gates Foundation.

Justin Tallis
FILE - Bill Gates reacts during a visit with Britain's Prime Minister Rishi Sunak at the Imperial College University, in central London, on Feb. 15, 2023. On Friday, June 30, The Associated Press reported on stories circulating online incorrectly claiming rare malaria cases reported in Florida and Texas recently were caused by a disease-control initiative backed by Gates that involved releasing genetically modified mosquitoes in the U.S. (Justin Tallis/Pool Photo via AP, File)
Regardless, Oxitec and experts say the notion that the company’s work could be responsible for the malaria spread is impossible for one simple reason: The modified mosquitoes being released are not the kinds that transmit malaria. “There is absolutely no truth to these claims,” Oxitec spokesperson Joshua Van Raalte said in an email. “They are scientifically impossible.”
Oxitec’s work in the U.S. has involved releasing genetically modified, male Aedes aegypti mosquitoes in the Florida Keys with the purpose of combating insect-borne diseases such as Dengue fever and the Zika virus. The intent is to have the modified mosquitoes mate with female mosquitoes and pass on a genetic change in a protein that would render any female offspring unable to survive — thus reducing the population of the insects that transmit disease.
Aedes aegypti cannot and do not transmit malaria, concurred Nora Besansky, a biology professor at the University of Notre Dame who specializes in mosquitoes. A small subset of Anopheles mosquitoes are the only ones that do transmit human malaria, Besansky said in an email. She added that Oxitec only releases male Aedes mosquitoes — but it’s female mosquitoes that bite people for blood and “thus only the female mosquitoes transmit malaria parasites.” Lawrence Reeves, an entomologist at the Florida Medical Entomology Laboratory, part of the University of Florida, agreed that the mosquito releases from Oxitec “have nothing at all to do with malaria, and it’s absurd to claim otherwise.”
It’s also worth noting that the four malaria cases in Florida were reported in Sarasota County, not near the Florida Keys, where the Oxitec project is located, said Chad Huff, a spokesperson for the Florida Keys Mosquito Control District. And apart from the Florida Keys, Oxitec has not released mosquitoes anywhere else in the U.S., Van Raalte said.
While the local spread of malaria reported in Florida and Texas is rare, it’s not unprecedented, as the AP has reported. Since 1992, there’ve been 11 outbreaks involving malaria from mosquitoes in the U.S. For experts and officials, the cases are not as confounding or unexpected as some may think. Zach Adelman, an entomology professor at Texas A&M University, said malaria was endemic in the southeastern U.S. for hundreds of years. That was curbed by changes to the landscape, such as draining marshes and swamps, and the use of insecticides. But international travel still presents an opportunity for people to bring malaria to the U.S. and for local mosquitoes to then transmit it.
— Associated Press writer Angelo Fichera in New Jersey contributed this report.
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Has the number of glaciers changed in Al Gore’s lifetime? Experts say their mass is more important
CLAIM: There are 130,000 glaciers on Earth today, the same number as when former Vice President Al Gore was born.
THE FACTS: There is no way of knowing the number of glaciers when Gore was born in 1948, since there was no global inventory at the time, experts tell the AP, but glaciers are shrinking at an alarming rate due to human-caused climate change.
Some social media users continue to doubt the phenomenon and are sharing as evidence a meme claiming that there hasn’t been a decline in the number glaciers since Gore was born 75 years ago. The image, shared on Instagram, shows a photo of a young Gore with text under the image that reads: “The day Al Gore was born there were 130,000 glaciers on Earth. Today, only 130,000 remain.”
Gore was in office from 1993-2001, and has since been involved with multiple projects around environmental activism. Scientists aren’t able to determine how many glaciers existed in 1948 because there was no comprehensive data at the time, said Louis Sass, a glaciologist with the U.S. Geological Survey Alaska Science Center. The best complete global inventory of how many glaciers are on Earth is from the Randolph Glacier Inventory, said David Rounce, a glaciologist and engineering professor at Carnegie Mellon University. The Randolph Glacier Inventory is part of the Global Land Ice Measurements from Space initiative. The inventory estimates the number of glaciers and the area they covered in the year 2000, using satellite imagery. The latest version estimates that there were around 215,000 glaciers in the world covering 705,740 square kilometers that year, not counting those on ice sheets in Greenland and Antarctica.

Peter Dejong
FILE - Former U.S. Vice President Al Gore listens to a question during an interview at the COP27 U.N. Climate Summit, Wednesday, Nov. 9, 2022, in Sharm el-Sheikh, Egypt. On Friday, June 30, 2023, The Associated Press reported on stories circulating online incorrectly claiming there are 130,000 glaciers on Earth today, the same number as when Gore was born. (AP Photo/Peter Dejong, File)
Michael Zemp, the director of the World Glacier Monitoring Service, believes the 130,000 figure could have originated from the World Glacier Inventory. The WGI was established in the 1980s and recorded the number of glaciers using topographic maps and aerial images from the mid-20th century, not satellite images that are used today. But the WGI is a historical database that isn’t complete, and was replaced by the Randolph Glacier Inventory.
Regardless, experts say that looking at the total number of glaciers isn’t the best way to measure the effects of climate change. In a warming atmosphere, the number of glaciers can decrease because they vanish — but it can also increase because a larger glacier disintegrates into several smaller ice patches, Zemp said. The number may also vary because of how a scientist defines glaciers and the size threshold used in various glacier inventories. “The best way to measure glacier changes over time is to use their glacier area or their mass,” Rounce said.
Zemp pointed to research from the World Glacier Monitoring Service that says around 335 billion tons of glacier ice was lost per year from 2006 to 2016. That corresponds with an increase in sea levels of almost 1 millimeter (0.04 inch) per year, accounting for 25-30% of the observed increase in global sea levels, the service said. In January 2023, Hinman Glacier, the largest glacier between Mount Rainier and Glacier Peak, melted away. And a study led by Rounce published the same month found that two-thirds of the Earth’s glaciers are projected to melt out of existence by the end of the century.
— Associated Press writer Karena Phan in Los Angeles contributed this report.
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Supreme Court did not hear a case seeking to oust Biden and other elected officials
CLAIM: The U.S. Supreme Court heard a case last week that was expected to annul the 2020 election.
THE FACTS: The Supreme Court did not hear such a case.
On Monday, the justices declined to hear a case that argues hundreds of elected officials, including President Joe Biden, Vice President Kamala Harris and former Vice President Mike Pence, should be ousted from their government positions for violating their oaths of office when they refused to investigate unfounded allegations that the 2020 race was rigged. The court has twice declined to hear a related case that cites these baseless claims, most recently on Feb. 21.

Jacquelyn Martin
The Supreme Court is seen, Friday, June 30, 2023, as decisions are expected in Washington. (AP Photo/Jacquelyn Martin)
But social media users erroneously claimed the justices were poised to decide a case that could undo the last presidential election. “The US Supreme Court began hearing the Brunson case yesterday Wed. 21 June, continued today 22 June and should have a decision out by Saturday 24 June,” an Instagram post states. “The result was expected to be an annulment of the 2020 Election, which would dissolve the Biden Administration and all of Congress for not investigating fraud in the 2020 Election.”
The suit — Brunson v. Adams, et al. — was previously dismissed multiple times by a lower court before the case was ordered closed, according to court documents. It was then appealed to the Supreme Court on April 19. The suit argues that Biden, Harris, Pence and 385 members of Congress violated their oaths of office when they declined to investigate baseless claims about 2020 election interference. The Supreme Court on Monday declined to hear the case.
This suit is not to be confused with one of the same name which similarly argues that Biden, Harris, Pence and 385 members of Congress committed treason when they failed to probe the unfounded allegations about the 2020 race. Two Utah brothers with the same last name each filed one of the suits. The Supreme Court has declined to hear that case twice.
Aziz Huq, a professor of law at the University of Chicago who is an expert on constitutional law, previously told the AP that it is unlikely the Supreme Court will ever hear such cases, given that they rely on a false narrative.
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How climate change is affecting America’s national parks
Jacob W. Frank/National Park Service via Getty Images
Yellowstone National Park regularly receives over 4 million visitors during its peak season. Its geothermal features, wildlife, and scenery make it one of the most popular parks in the U.S. But last June, park officials closed the more than 2 million acre park for over a week due to historic levels of flooding.
Reports later showed precipitation elevated water levels to record heights. It's difficult to attribute individual events like the historic flooding of Yellowstone directly to climate change. However, Intergovernmental Panel on Climate Change reports show North America's rain storms and subsequent flooding have increased overall due to greenhouse gas emissions.
America's national parks are home to some of the most breathtaking environmental extremes. From the rich biodiversity of the Great Smokies to Zion's red cliff sides, the parks' popularity is rooted in their unique geologies and ecologies, much of which formed throughout millions of years. But as human-driven emissions accelerate climate change, national parks will face drastic changes by the century's end.
Stacker referenced research from climate scientists, the National Parks Service, and the U.S. Geological Survey to examine how climate change impacts America's national parks.
Scientists warn that extreme weather events will only become more common as climate change increases the temperature in the atmosphere. Extreme weather events are some of the most recognizable changes people see in national parks. Still, over the next century, slower changes like increasing temperatures and changing precipitation will also take a toll on public lands.
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Jacob W. Frank/National Park Service via Getty Images
Yellowstone National Park regularly receives over 4 million visitors during its peak season. Its geothermal features, wildlife, and scenery make it one of the most popular parks in the U.S. But last June, park officials closed the more than 2 million acre park for over a week due to historic levels of flooding.
Reports later showed precipitation elevated water levels to record heights. It's difficult to attribute individual events like the historic flooding of Yellowstone directly to climate change. However, Intergovernmental Panel on Climate Change reports show North America's rain storms and subsequent flooding have increased overall due to greenhouse gas emissions.
America's national parks are home to some of the most breathtaking environmental extremes. From the rich biodiversity of the Great Smokies to Zion's red cliff sides, the parks' popularity is rooted in their unique geologies and ecologies, much of which formed throughout millions of years. But as human-driven emissions accelerate climate change, national parks will face drastic changes by the century's end.
Stacker referenced research from climate scientists, the National Parks Service, and the U.S. Geological Survey to examine how climate change impacts America's national parks.
Scientists warn that extreme weather events will only become more common as climate change increases the temperature in the atmosphere. Extreme weather events are some of the most recognizable changes people see in national parks. Still, over the next century, slower changes like increasing temperatures and changing precipitation will also take a toll on public lands.
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How climate change is affecting America’s national parks
Emma Rubin // Stacker
National parks in and near the Arctic were largely projected to have the greatest increase in temperature over the next century. Declining snow and ice cover will accelerate temperature change in the region.
The average temperature increase across all sites managed by the National Parks Service, including monuments, historical parks, recreation areas, and other designations, was 4.9 degrees Celcius under high emissions scenarios. Reduced emissions showed an average increase of 1.7 degrees C, compared to previous century averages of 0.5 degrees C. These projections largely remain the same when looking exclusively at the 64 national parks, but the historical temperature increase is closer to 0.6 degrees C.
Patrick Gonzalez, executive director of the Institute for Parks, People, and Biodiversity and former principal climate scientist for the National Parks Service, published projections under different emissions scenarios for every park in the U.S.
Gonzalez and his team found temperatures in national parks are rising twice as fast as the rest of the country. Between 1895 and 2010, annual precipitation declined 12% across parklands compared to 3% in the U.S. as a whole.
Warmer temperatures combined with extended periods of drought can impact the plant and animal life that have become synonymous with particular parks. Saguaro National Park's eponymous cacti have failed to establish themselves in the park since the 1990s. In California's Sequoia National Park, the mortality of ponderosa and sugar pines during one particular drought period was seven times the normal mortality rate for nondrought periods as measured from 2004-2007.
Parks can practice resilience in the face of climate change threats. Heat-resistant coral in Biscayne National Park can preserve the reef ecosystem. In Hawaii Volcanoes National Park, establishing populations of rare and endangered plants outside of their usual range can protect them ahead of drier and warmer conditions.
Mitigation alone won't save America's parks, however. "The fundamental solution to protecting our national parks is to cut the carbon pollution from cars, power plants, deforestation, and other human activities that cause climate change," Gonzalez told Stacker.
Lowering emissions to the threshold established by the Paris Agreement could curb expected warming in national parks by up to two-thirds compared to warming in the highest emission scenarios by 2100, according to Gonzalez's research.
Emma Rubin // Stacker
National parks in and near the Arctic were largely projected to have the greatest increase in temperature over the next century. Declining snow and ice cover will accelerate temperature change in the region.
The average temperature increase across all sites managed by the National Parks Service, including monuments, historical parks, recreation areas, and other designations, was 4.9 degrees Celcius under high emissions scenarios. Reduced emissions showed an average increase of 1.7 degrees C, compared to previous century averages of 0.5 degrees C. These projections largely remain the same when looking exclusively at the 64 national parks, but the historical temperature increase is closer to 0.6 degrees C.
Patrick Gonzalez, executive director of the Institute for Parks, People, and Biodiversity and former principal climate scientist for the National Parks Service, published projections under different emissions scenarios for every park in the U.S.
Gonzalez and his team found temperatures in national parks are rising twice as fast as the rest of the country. Between 1895 and 2010, annual precipitation declined 12% across parklands compared to 3% in the U.S. as a whole.
Warmer temperatures combined with extended periods of drought can impact the plant and animal life that have become synonymous with particular parks. Saguaro National Park's eponymous cacti have failed to establish themselves in the park since the 1990s. In California's Sequoia National Park, the mortality of ponderosa and sugar pines during one particular drought period was seven times the normal mortality rate for nondrought periods as measured from 2004-2007.
Parks can practice resilience in the face of climate change threats. Heat-resistant coral in Biscayne National Park can preserve the reef ecosystem. In Hawaii Volcanoes National Park, establishing populations of rare and endangered plants outside of their usual range can protect them ahead of drier and warmer conditions.
Mitigation alone won't save America's parks, however. "The fundamental solution to protecting our national parks is to cut the carbon pollution from cars, power plants, deforestation, and other human activities that cause climate change," Gonzalez told Stacker.
Lowering emissions to the threshold established by the Paris Agreement could curb expected warming in national parks by up to two-thirds compared to warming in the highest emission scenarios by 2100, according to Gonzalez's research.
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How climate change is affecting America’s national parks
Emma Rubin // Stacker
Between 1966 and 2015, Glacier National Park lost nine named glaciers. The National Parks Service additionally estimates that today some of the 26 glaciers in its last count may also be too small to meet the 0.1 square kilometer minimum.
The glacial retreat in the park has been ongoing since the end of the Little Ice Age in 1850. While natural climate change has played some role over the past century, human-caused climate change has accelerated recent losses. It's unclear when the parks' glaciers could disappear entirely, but it may already be too late to save the Montana parks' namesake. Even under reduced emissions scenarios, the glaciers are expected to disappear by the end of the century.
The losses are more than aesthetic. Glaciers provide fresh water and support stream ecosystems during the summer, providing cool water vital for the survival of species such as bull trout. Declining glacial volume means runoff may not be able to offset increasing water temperatures from hotter summers.
Other parks' glaciers are also suffering. Between 1984 and 2021, at least 14 of Kenai Fjords National Park's 35 named glaciers lost substantial area. Melt in environments like Alaska also contributes to sea level rise.
Emma Rubin // Stacker
Between 1966 and 2015, Glacier National Park lost nine named glaciers. The National Parks Service additionally estimates that today some of the 26 glaciers in its last count may also be too small to meet the 0.1 square kilometer minimum.
The glacial retreat in the park has been ongoing since the end of the Little Ice Age in 1850. While natural climate change has played some role over the past century, human-caused climate change has accelerated recent losses. It's unclear when the parks' glaciers could disappear entirely, but it may already be too late to save the Montana parks' namesake. Even under reduced emissions scenarios, the glaciers are expected to disappear by the end of the century.
The losses are more than aesthetic. Glaciers provide fresh water and support stream ecosystems during the summer, providing cool water vital for the survival of species such as bull trout. Declining glacial volume means runoff may not be able to offset increasing water temperatures from hotter summers.
Other parks' glaciers are also suffering. Between 1984 and 2021, at least 14 of Kenai Fjords National Park's 35 named glaciers lost substantial area. Melt in environments like Alaska also contributes to sea level rise.
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How climate change is affecting America’s national parks
CHANDAN KHANNA/AFP via Getty Images
Along the South Florida coast, the mingling of freshwater and saltwater tides creates unique ecosystems that support orchids, mangroves, and buttonwood trees. There, Everglades National Park, established in 1934, covers nearly 5 million acres and is the largest tropical forest in the U.S. Rising sea levels are, unfortunately, making waters in the area saltier, shifting the boundaries of its ecosystems.
Cape Sable, a freshwater marshland, was transformed in the early 20th century by attempts to dry the area for agricultural purposes. This process resulted in much of the freshwater being pumped out to sea. As a result, sea level rise combined with storm surges filled the area and surrounding lakes with salty water and marine sediment, disrupting the habitat.
Recent damming of the canals originally built to drain the area has helped stop freshwater flow out of Cape Sable. This effort proved particularly valuable in the aftermath of Hurricane Irma. Scientists found the restored habitat withstood the storm's effects much more robustly than the area's unprotected portions, demonstrating that restoring wetlands in coastal environments improves resilience in the face of rising sea levels.
Outside the Everglades, a quarter of all sites managed by the National Parks Service are along the coast. A May 2018 NPS study found that by 2100, sites along South Carolina's outer banks will see the highest sea level rise. Other sites throughout the Southeast will experience heightened risks from storm surges during hurricanes and tropical storms.
CHANDAN KHANNA/AFP via Getty Images
Along the South Florida coast, the mingling of freshwater and saltwater tides creates unique ecosystems that support orchids, mangroves, and buttonwood trees. There, Everglades National Park, established in 1934, covers nearly 5 million acres and is the largest tropical forest in the U.S. Rising sea levels are, unfortunately, making waters in the area saltier, shifting the boundaries of its ecosystems.
Cape Sable, a freshwater marshland, was transformed in the early 20th century by attempts to dry the area for agricultural purposes. This process resulted in much of the freshwater being pumped out to sea. As a result, sea level rise combined with storm surges filled the area and surrounding lakes with salty water and marine sediment, disrupting the habitat.
Recent damming of the canals originally built to drain the area has helped stop freshwater flow out of Cape Sable. This effort proved particularly valuable in the aftermath of Hurricane Irma. Scientists found the restored habitat withstood the storm's effects much more robustly than the area's unprotected portions, demonstrating that restoring wetlands in coastal environments improves resilience in the face of rising sea levels.
Outside the Everglades, a quarter of all sites managed by the National Parks Service are along the coast. A May 2018 NPS study found that by 2100, sites along South Carolina's outer banks will see the highest sea level rise. Other sites throughout the Southeast will experience heightened risks from storm surges during hurricanes and tropical storms.
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How climate change is affecting America’s national parks
Joe Raedle // Getty Images
Over 600 endangered and threatened animals live in park sites, according to the National Parks Conservation Association. Urban development, pollution, and other human activity have driven these animals to at-risk statuses, but public lands provide safe habitats with limited human encroachment.
Every year, thousands of sea turtle hatchlings emerge along the Southeast coast. The reptiles, about 2 inches when they hatch, face natural obstacles during their nocturnal shuffle to the ocean as well as the threat of predators like crabs. Human threats such as litter, fishing refuse, and beach activity further complicate the journey.
Four of five sea turtle species in the U.S. are endangered due to human threats. National parks like Dry Tortugas, the most active nesting site in the Florida Keys, offer a refuge for sea turtles and other animals.
As climate change shifts environments, however, protected lands that were once ideal habitats could become inhospitable. Low-lying islands in Dry Tortugas National Park will likely be submerged due to sea level rise by 2100, reducing the area favored by turtles amid other intensifying threats due to climate change.
Joe Raedle // Getty Images
Over 600 endangered and threatened animals live in park sites, according to the National Parks Conservation Association. Urban development, pollution, and other human activity have driven these animals to at-risk statuses, but public lands provide safe habitats with limited human encroachment.
Every year, thousands of sea turtle hatchlings emerge along the Southeast coast. The reptiles, about 2 inches when they hatch, face natural obstacles during their nocturnal shuffle to the ocean as well as the threat of predators like crabs. Human threats such as litter, fishing refuse, and beach activity further complicate the journey.
Four of five sea turtle species in the U.S. are endangered due to human threats. National parks like Dry Tortugas, the most active nesting site in the Florida Keys, offer a refuge for sea turtles and other animals.
As climate change shifts environments, however, protected lands that were once ideal habitats could become inhospitable. Low-lying islands in Dry Tortugas National Park will likely be submerged due to sea level rise by 2100, reducing the area favored by turtles amid other intensifying threats due to climate change.
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How climate change is affecting America’s national parks
Mario Tama // Getty Images
Decades of fire suppression efforts during the mid-20th century led to debris buildup, which is now amplifying climate-fueled wildfire seasons in the West. Between 1984 and 2015, the area burned by wildfires in the Western U.S. doubled. Research has attributed a large share of this growth to climate change.
Three fires in 2020 and 2021 were estimated to have killed 13-19% of the Sierra Nevada's sequoia population. Sequoias are notably resistant to fires, and low-severity events are even critical to their growth. Still, large-scale events are damaging their range within and outside national park boundaries.
Prescribed burns can prevent large-scale fires that become hard to control, but climate scientists say prolonged drought and increased heat will continue to make fire impacts more severe. In high emissions scenarios, wildfires could even start impacting parks that haven't historically been affected, such as the Gate of the Arctic National Park and Preserve and Noatak National Preserve in Alaska.
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Mario Tama // Getty Images
Decades of fire suppression efforts during the mid-20th century led to debris buildup, which is now amplifying climate-fueled wildfire seasons in the West. Between 1984 and 2015, the area burned by wildfires in the Western U.S. doubled. Research has attributed a large share of this growth to climate change.
Three fires in 2020 and 2021 were estimated to have killed 13-19% of the Sierra Nevada's sequoia population. Sequoias are notably resistant to fires, and low-severity events are even critical to their growth. Still, large-scale events are damaging their range within and outside national park boundaries.
Prescribed burns can prevent large-scale fires that become hard to control, but climate scientists say prolonged drought and increased heat will continue to make fire impacts more severe. In high emissions scenarios, wildfires could even start impacting parks that haven't historically been affected, such as the Gate of the Arctic National Park and Preserve and Noatak National Preserve in Alaska.
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