John Amis/AP
  • Tennessee Flooding

    Tennessee Flooding
    The world has seen a huge uptick in the number of, and the severity of, extreme weather events driven by climate change. Here's a collection of photos from just this year. <br><br> Cars are stacked on top of each other on the banks of Blue Creek being swept up in flood water, Aug. 23, 2021, in Waverly, Tenn.
    John Amis/AP
  • Tennessee Flooding

    Tennessee Flooding
    Humphreys County, in middle Tennessee, was pummeled with up to 17 inches of rain on Aug. 21, 2021, triggering flash flooding that's killed 20 people and left miles of devastation. <br><br> Debris was scattered everywhere, and houses were swept off their foundations, according to residents. Many of the homes left were filled with mud and debris. <br> <br> Josh Whitlock and Stacy Mathieson look at what is left of their home after it burned following flooding in Waverly, Tenn., Aug. 22, 2021.
    Andrew Nelles/The Tennessean via USA Today Network
  • Tennessee Flooding

    Tennessee Flooding
    John Curtis, co-owner of Waverly Cash Saver grocery store, walks through his damaged store, Aug. 22, 2021, in Waverly, Tenn.
    Mark Humphrey/AP
  • Germany Flooding

    Germany Flooding
    In western Europe, more than 200 people died in July due to catastrophic flash flooding in parts of western Germany and eastern Belgium, The Associated Press reported. <br><br> People had to be rescued from the roofs of their houses with inflatable boats and helicopters. <br> <br> The region also saw record rain from a slow-moving system, causing banks at rivers and reservoirs to burst, sending raging flood water into streets, swallowing cars, homes, businesses and even entire villages. <br><br> The Blessem district of Erftstadt in Germany, July 16, 2021.
    Rhein-erft-kreis/AP
  • Germany Flooding

    Germany Flooding
    Debris of houses and trees surround houses in Schuld, Germany, July 16, 2021.
    Michael Probst/AP
  • Germany Flooding

    Germany Flooding
    A woman stands next to cars and rubble piled up in a street after the floods caused major damage in Bad Neuenahr-Ahrweiler, Germany, July 16, 2021.
    Christof Stache/AFP via Getty Images
  • California Wildfires

    California Wildfires
    Record high temperatures caused by climate change has resulted in a massive drought throughout the western part of the United States, which has led to an increase in wildfires. <br><br> The eight largest fires in California history have occurred in the last four years. The Dixie Fire, currently raging through Northern California, is the second-largest fire in state history. <br><br> Members of the Fulton Hotshots work through the night at the Dixie Fire near Quincy, Calif., July 26 2021.
    Jungho Kim/The New York Times via Redux
  • California Wildfires

    California Wildfires
    A bear cub clings to a tree after being spotted by a safety officer at the Bootleg Fire in southern Oregon, July 18, 2021.
    Bryan Daniels/AP
  • California Wildfires

    California Wildfires
    Flames consume a home as the Dixie Fire tears through the Indian Falls community in Plumas County, Calif., July 24, 2021. The fire destroyed multiple residences in the area.
    Noah Berger/AP
  • China Flooding

    China Flooding
    Torrential rainfall in central China in July, described by local forecasters as the heaviest downpour in generations, caused devastating flooding. <br><br> The city of Zhengzhou experienced nearly a year’s worth of rainfall in just a few days. State-run media reported that over 1.1 million residents were displaced and more than 300 people have died. <br><br> A submerged subway car following heavy rains in Zhengzhou, China, July 20, 2021.
    Handout/Courtesy of Weibo user merakiZz
  • China Flooding

    China Flooding
    Cars sit in floodwaters following heavy rains, in Zhengzhou, China, July 22, 2021.
    Noel Celis/AFP via Getty Images
  • China Flooding

    China Flooding
    A flooded area in Weihui, China, July 26, 2021.
    AFP via Getty Images
  • Northwest US Record Heat

    Northwest US Record Heat
    Record-shattering temperature plagued the Pacific Northwest in June. Canada saw all-time and historic temperatures from this heat wave. <br><br> At least 128 people have died in Oregon and Washington state because of the extreme heat, according to ABC News affiliate KOMO. <br><br> Residents gather in a public cooling shelter set up at the Oregon Convention Center during a heat wave in Portland, June 26, 2021.
    Maranie Staab/Bloomberg via Getty Images
  • Northwest US Record Heat

    Northwest US Record Heat
    A woman shops for perishable items covered with a layer of plastic to keep in the cool air at a Fred Meyer grocery store in Portland, June 28, 2021, where temperatures reached an all-time high of 116 degrees Fahrenheit.
    Alex Milan Tracy/Sipa USA via AP
  • Northwest US Record heat

    Northwest US Record heat
    A worker reaches up to pull the leaf canopy over pinot noir grapes on July 8, 2021, to shade the fruit from the sun, at Willamette Valley Vineyards in Turner, Ore.
    Andrew Selsky/AP
  • Megadrought

    Megadrought
    A "megadrought" is classified by NOAA as a severe and intense period of drought that spans decades. According to the U.S. Drought Monitor, nearly 88% of the American West is currently in severe to exceptional drought, with some parts of the Southwest dating the drought's origins back to the 1990s. <br><br> A tall, bleached "bathtub ring" is visible on the rocky banks of Lake Powell at Reflection Canyon, June 24, 2021, in Lake Powell, Utah.
    Justin Sullivan/Getty Images
  • Megadrought

    Megadrought
    Houseboats sit in low water on Lake Oroville as California's drought emergency worsens, July 25, 2021 in Oroville, Calif.
    Robyn Beck/AFP via Getty Images
  • Megadrought

    Megadrought
    The San Gabriel River and the exposed lakebed of the San Gabriel Reservoir are seen on June 29, 2021, in the San Gabriel Mountains near Azusa, Calif.
    Mario Tama/Getty Images
  • Russia Record Heat

    Russia Record Heat
    Russia is enduring excessively hot temperatures as the country warms 2.5 times faster than the rest of the globe. <br><br> Wildfires in Siberia are releasing record amounts of greenhouse gases, scientists said, further contributing to global warming. <br><br> This summer has seen particularly massive fires in Yakutia, in northeastern Siberia, following unprecedented heat. <br><br> Flusher trucks spray water in a street in central Moscow during a heat wave on July 13, 2021.
    Vladimir Gerdo/TASS via ZUMA Press
  • Russia Record Heat

    Russia Record Heat
    Firefighters work at the scene of a forest fire near Andreyevsky village outside Tyumen, western Siberia, Russia, June 16, 2021.
    Maksim Slutsky/AP
  • Russia Record Heat

    Russia Record Heat
    Children cool off in a fountain during a hot summer day in Moscow, July 14, 2021.
    Dimitar Dilkoff/AFP via Getty Images
  • Texas Deep Freeze

    Texas Deep Freeze
    Frigid winter weather across the U.S. in February hit Texas particularly hard with the coldest temperatures in decades, at one point leaving nearly 3 million people without power due to the collapse of the electric power grid and burst pipes. The wind chill in Dallas was below zero for more than 24 hours. <br><br> According to The Associated Press, the Texas Department of State Health Services recorded 210 related deaths. <br><br> Pink flamingo lawn ornaments on a snow-covered lawn in Austin, Texas, Feb. 16, 2021.
    Tamir Kalifa/The New York Times via Redux
  • Texas Deep Freeze

    Texas Deep Freeze
    An aerial view from a drone shows cars lining up for a water distribution event at the Fountain Life Center, Feb. 20, 2021, in Houston.
    Justin Sullivan/Getty Images
  • Texas Deep Freeze

    Texas Deep Freeze
    People wait in line to fill propane tanks, Feb. 17, 2021, in Houston.
    David J. Phillip/AP