Quiz: Can you guess from these photos how much snow fell across the U.S.?
These photos show recent snowfall in U.S. cities like D.C., Buffalo and Chicago. Can you guess how much it snowed from photos across the country?
By Niko Kommenda and Ian LivingstonBird populations are declining. Some are in your neighborhood.
North America has lost 3 billion birds in half a century. The world’s biggest bird database, eBird, shows how bird populations are doing in your town.
By Harry StevensWhere the world warmed the most in Earth’s hottest year
A Washington Post analysis of climate data found one-fifth of the planet was 2 degrees Celsius warmer than in the late 1800s, before humans started burning fossil fuels on a large scale.
By John Muyskens and Niko KommendaCan you guess how crazy last year’s weather was? Try this game.
Most Americans agree that global warming is happening. But how much, exactly? In this game, try to draw how 2023’s heat compared with 40 years of climate data.
By Harry StevensWritten in the wood
What one pine tree on an Arizona mountaintop can tell us about the hottest year on record -- and what lies ahead
By Sarah Kaplan, Bonnie Jo Mount, Emily Wright and Frank Hulley-JonesThe nation’s capital, built on water, struggles to keep from drowning
Washington, D.C., is awash in water. It was built on fill and its natural waterways, long buried, are coming back to life.
By Dana Priest and John MuyskensOn the hunt for climate disease
As climate change fuels disease, researchers must reinvent how to fight outbreaks. In Peru and the Amazon, AI and drones can identify dengue and malaria cases.
By Ana Campoy and Niko KommendaAncient warning of a rising sea
Coral reefs in the Seychelles off Africa may indicate where sea level rise will be felt the hardest as human-caused climate change impacts the world’s oceans.
By Sarah Kaplan, Bonnie Jo Mount, Emily Wright, Frank Hulley-Jones and Simon DucroquetHow soon do you have to buy heat pumps and EVs to avoid climate catastrophe?
We took a look at how quickly Americans have adopted these technologies — and how much further they need to go.
By Michael J. Coren and Niko KommendaAn invisible killer
Cases of Valley fever, fueled by the fungus coccidioides, have quadrupled over 20 years. Climate change, more extreme drought and fires may hasten its spread.
By Joshua Partlow, Veronica Penney and Carolyn Van HoutenWhere malaria is spreading
Cases of malaria threaten to increase dramatically from climate change as rising temperatures push mosquitoes to new areas and lengthen transmission seasons.
By Rachel Chason, Kevin Crowe, John Muyskens and Jahi ChikwendiuThe inequality of heat
A poor Kolkata neighborhood lost power during a heat wave, unlike a nearby luxury mall. The resulting protest exposed extreme heat’s unequal toll in India.
By Annie Gowen, Anant Gupta, Niko Kommenda and Simon DucroquetClimate-linked ills threaten humanity
Climate-fueled disease — tied to heat, pathogens and toxins — is an emerging, lethal threat that countries are ill-prepared to confront. The Post visited ground zero for this new era, Pakistan, to see what the future holds.
By Annie Gowen, Niko Kommenda and Saiyna BashirWhere dangerous heat is surging
By 2050, over 5 billion people could face at least a month of extreme heat each year. See the risk level in your city.
By Niko Kommenda, Shannon Osaka, Simon Ducroquet and Veronica PenneyHow wildfires are threatening the Mediterranean way of life
Wildfires in Greece and beyond have been turning virgin forest into preternatural moonscapes and devastating monasteries, tavernas, vineyards and olive groves.
By Anthony Faiola and Elinda LabropoulouBuried under the ice
Scientists journeyed to Greenland in an unprecedented experiment to drill for rocks beneath the ice sheet. But a crack in the ice threatened their mission — and their ability to predict the fate of the warming world.
By Sarah Kaplan, Bonnie Jo Mount, Simon Ducroquet, Emily Wright and Frank Hulley-JonesHere’s where water is running out in the world — and why
New research shows that by 2050 an additional 1 billion people will live in areas with high levels of water stress. See where water is scarcest in the world — and why we need to conserve.
By Veronica Penney and John MuyskensIs it cheaper to refuel your EV battery or gas tank? We did the math in all 50 states.
I wanted to compare the cost of recharging an electric car versus filling up a gas tank in all 50 states. Here's what I found.
By Michael J. CorenAmerica needs clean electricity. These states show how to do it.
Vermont makes the cleanest power, while West Virginia uses lots of coal. What can states with the cleanest electricity teach us?
By Harry StevensPhoenix hits record for 19th day of 110+ degrees in a row — with more ahead
High temperatures are forecast to reach 115 degrees or hotter for at least the next week.
By Allyson Chiu, Scott Dance and Naema Ahmed