Wildfires raging around the world this week have forced thousands of people to evacuate as flames raze homes and burn across hundreds of thousands of acres of land.
Why it matters: Record heat waves propelled by human-caused climate change have triggered many of the fires burning across the U.S. West, Canada, Russia, Greece, Turkey, Algeria and Italy. A new climate report from the UN's IPCC concludes that human influence on the climate system "is now an established fact."
Greece
What's happening: Dozens of wildfires broke out in Greece last week after the country suffered its worst heat wave in decades.
Firefighters are facing extremely dry conditions. Prime Minister Kyriakos Mitsotakis called the situation a "nightmarish summer."
The largest burning in the U.S. is California's Dixie Fire — the second-biggest wildfire in the state's history. Thousands of residents have been evacuated as the blaze has razed nearly 500,000 acres.
Algeria
What's happening: Wildfires in Algeria's north have killed 42 people, including 25 soldiers who helped evacuate residents.
Dozens of fires broke out in the remote Kabyle region and elsewhere on Monday.
Russia
What's happening: Intense wildfires burning across Siberia's Sakha Republic have been active for months.