Before you do anything else, you might want to look at an amazing chart that shows you 2,000 years of Earth’s climate…



New research shows that the amount of heat the planet traps has roughly doubled since 2005, contributing to more rapidly warming oceans, air and land. Oceans absorb most of that heat, about 90 percent. That extra heat, especially in the oceans, will mean more intense hurricanes and marine heat waves.

Climate change is making  heat waves more intensemore frequent, longer lasting, and more dangerous resulting in record breaking extremes: September 2020 was the world’s hottest month ever recorded, and in June 2021, Portland, Oregon had a day with 108 degrees, which broke all heat records. The summer of 2021 is now the warmest summer on record in the U.S., barely eclipsing the extreme heat of 1936’s Dust Bowl.

Extreme heat contributes to wildfire conditions, exacerbates drought, and endangers health.

NRDC has a heat map that is searchable by address. C2ES’ Resilience Strategies for Extreme Heat provide solutions for adaptation that be implemented on both an individual and community level.

And, if you are curious about how the temperatures in your hometown have risen since you were born and how much hotter they are predicted to become, take a look at this  New York Times Climate piece.



NOAA and communities to map heat inequities in 14 U.S. cities and counties

"Extreme heat kills more Americans than any other weather event and has the greatest impact on our nation's most vulnerable communities," said Deputy Secretary of Commerce Don Graves. "Fortunately, our talented and dedicated researchers and…

It’s official: July was Earth’s hottest month on record

“In this case, first place is the worst place to be,” said NOAA Administrator Rick Spinrad, Ph.D. “July is typically the world’s warmest month of the year, but July 2021 outdid itself as the hottest…

The Climate Crisis

We all live in two worlds: a physical one and a social one. The new report of the Intergovernmental Panel on Climate Change, which was released on Monday, is ostensibly about the physical world. It…

Assessing the U.S. Climate in June 2021

The June contiguous U.S. temperature was 72.6°F, 4.2°F above the 20th-century average, ranking warmest in the 127-year record and surpassing the previous record for June set in 2016 by 0.9°F. The year-to-date average temperature for…

Watching the Land Temperature Bell Curve Heat Up (1950-2020)

This visualization shows that as land temperatures have increased since 1950, hotter days have become more common and colder days have become less common.

Global risk of deadly heat

Climate change can increase the risk of conditions that exceed human thermoregulatory capacity.

Global death rate from rising temperatures projected to surpass the current death rate of all infectious diseases combined

How much is temperature to blame when hospital visits surge during heat waves and cold spells? What role might adaptations like indoor heating and cooling systems play in blunting those effects? And, at what cost?…

Newly released satellite data reveals the patterns of record warmth in 2019

Last year was the second-warmest on record for the globe, but in many places, such as Australia and Alaska, temperatures were unprecedented in modern record-keeping. This is known from data gathered by thermometers at the…

2,000 years of Earth’s climate in one simple chart – and the copycat that isn’t what it seems

What were global temperatures the year Jesus was born, during the 12th century when Genghis Khan ruled the Mongol Empire, and in 1503 when Leonardo da Vinci started painting the Mona Lisa — and how…

Climate Impact Map

The Climate Impact Lab is a unique collaboration of 30 climate scientists, economists, computational experts, researchers, analysts, and students from some of the nation’s leading research institutions.

Heat Safety Tips and Resources

This website is designed to inform you about the health dangers of heat, prepare you for excessive heat events, and tell you what to do during an excessive heat wave.

Extreme climate change has arrived in America

 Before climate change thawed the winters of New Jersey, this lake hosted boisterous wintertime carnivals. As many as 15,000 skaters took part, and automobile owners would drive onto the thick ice. Thousands watched as local…


A global warming pause that didn’t happen hampered climate science

By Alexandra Witze  Photo: Mario Tama   04/01/22  
It was one of the biggest climate change questions of the early 2000s: Had the planet’s rising fever stalled, even as humans pumped more heat-trapping gases into Earth’s atmosphere?

A greener Arctic is not a climate change solution

By Donatella Zona  Photo: Lisa Hupp   03/30/22  
Some theories suggest that this “Arctic greening” will help counteract climate change. The idea is that since plants take up carbon dioxide as they grow, rising temperatures will mean Arctic vegetation will absorb more carbon…

Science needs data to solve problems. Climate change is making that harder

By Joan Meiners  Photo: Thomas Hawthorne   03/23/22  
Sometimes science becomes too hot to handle. That's what researchers at the University of Arizona found recently when they tried to test a new air pollution monitoring system around Tucson.

Both of the planet’s poles experience extreme heat

By The Associated Press  Photo: David Goldman/AP   03/19/22  
Earth's poles are undergoing simultaneous freakish extreme heat with parts of Antarctica more than 70 degrees (40 degrees Celsius) warmer than average and areas of the Arctic more than 50 degrees (30 degrees Celsius) warmer…

It’s 70 degrees warmer than normal in eastern Antarctica

By Jason Samenow and Kasha Patel  Photo: WeatherBell   03/18/22  
‘This event is completely unprecedented and upended our expectations about the Antarctic climate system,’ one expert said

‘People are dying’: Global warming already being seen in North America, UN report finds

By Dinah Voyles Pulver   03/15/22  
People are dying from more intense heat waves, hurricanes and flooding. Forests are disappearing because of worsening wildfires, droughts and pest invasions. Rising sea levels are imperiling coastal communities and ecosystems.

What Yosemite will look like in 2100 if we do nothing about climate change

By Ashley Harrell  Photo: Mark Ralston/AFP / Getty Images   02/16/22  
As Northern California’s unseasonably warm weather broke records this weekend, grim news circulated on drought in the Western United States: Thanks to human-caused climate change, we are living through the region’s driest period in 1,200…

Soak up the February sun? Not without climate change guilt in California

By Debra Kahn  Photo: Mario Tama/Getty Images   02/12/22  
Californians are lounging in parks, wearing shorts to the beach and dining al fresco without heat lamps in February — and feeling terrible about it.

Brush fires rage in Southern California amid record heat, worsening drought

By Matthew Cappucci  Photo: Sarah Shtylman/Reuters   02/11/22  
Talk about weather whiplash. Desiccating drought has become reinforced in California after a brief spell of heavy precipitation in the fall, dashing hopes of a long-term pattern change that would spell wetter weather for a…

A third of Americans are already facing above-average warming

By Oliver Milman  Photo: Andrew Witherspoon   02/05/22  
More than a third of the American population is currently experiencing rapid, above-average rates of temperature increase, with 499 counties already breaching 1.5C (2.7F) of heating, a Guardian review of climate data shows.

Climate change is shrinking the odds of a white Christmas

By Jason Samenow  Photo: Mark Miller/The Washington Post   12/18/21  
Rising temperatures have been eating away at the chances for snowfall for Santa in much of the United States, and the forecast is for mild weather again.

California records driest year in a century

By Laura Anaya-Morga  Photo: Brian van der Brug   10/18/21  
In a year of both extreme heat and extreme drought, California has reported its driest water year in terms of precipitation in a century, and experts fear the coming 12 months could be even worse.…

Rising Temperatures Will Change Air Conditioning Use—But Not How You Might Expect

By Molly Taft  Photo: Altaf Qadri (AP)   10/13/21  
After a summer of deadly heat, the future of air conditioning in a world marked by rising temperatures has come sharply into focus. While some research has indicated we could “essentially cook ourselves” if the…

Seventy-Two Hours Under the Heat Dome

By James Ross Gardner  Photo: Will Matsuda for The New Yorker   10/11/21  
The high winds that make up the polar jet stream encircle the Northern Hemisphere like a loosely draped rope. There are typically four or six curves in the rope, the result of the temperature differences…

The L.A. Times investigation into extreme heat’s deadly toll

Photo: Genaro Molina / Los Angeles Times   10/07/21  
Extreme heat is one of the deadliest consequences of global warming. But in a state that prides itself as a climate leader, California chronically undercounts the death toll and has failed to address the growing…

Fall on hold: Forecasters predict long-lasting warm temperatures in eastern U.S.

By Matthew Cappucci and Jason Samenow   10/07/21  
For about a week after the fall equinox, much of the eastern two-thirds of the Lower 48 states enjoyed crisp, refreshing autumn weather. But now Mother Nature has changed course. Warm, humid conditions more typical…

Extreme heat is one of the deadliest consequences of climate change.

By Genaro Molina   10/07/21  
It was the hottest August on record in California. For more than three weeks in 2020, back-to-back heat waves settled over the Southwest, claiming dozens of lives and leaving tens of millions of people sweltering…

Climate change is supercharging California heat waves, and the state isn’t ready

By Tony Barboza, Anna M. Phillips, Paul Duginski  Photo: Genaro Molina   10/07/21  
When a major heat wave hits Southern California, it begins with a jab — a ridge of high pressure builds over Nevada or Mexico and sweeps into the region, bringing scorching temperatures along with it.

California sees its hottest summer ever — so far

By Hayley Smith  Photo: Luis Sinco Los Angeles Times   09/09/21  
California and several other western states this year endured the hottest summer on record, according to federal data released Thursday, underscoring the ways rapid climate change is unleashing unprecedented wildfires, deadly heat waves and drought…

When Hard Jobs Turn Hazardous

By Sergio Olmos  Photo: Jordan Gale   09/05/21  
In early summer, a day laborer laying irrigation lines at a plant nursery just south of Portland, Ore., collapsed to the ground and died. His official cause of death was declared “heat related.”

Rising Heat Is Making It Harder to Work in the U.S., and the Costs to the Economy Will Soar With Climate Change

By Ciara Nugent   08/31/21  
Rising extreme heat will make it increasingly hard for workers to do their jobs, shaving hundreds of billions of dollars off the U.S. economy each year. That’s according to a report published Tuesday by the…

These Maps Tell the Story of Two Americas: One Parched, One Soaked

By Aatish Bhatia and Nadja Popovich  Photo: NOAA   08/24/21  
The country, like most of the world, is becoming both drier and wetter in the era of climate change. It depends where you live.

It Rained at the Summit of Greenland. That’s Never Happened Before.

By Henry Fountain  Photo: Josh Haner , The New York Times   08/20/21  
Something extraordinary happened last Saturday at the frigid high point of the Greenland ice sheet, two miles in the sky and more than 500 miles above the Arctic Circle: It rained for the first time.

How extreme heat from climate change distorts human behavior

By Sujata Gupta  Photo: Bruce Yuanyue Bi   08/18/21  
On a sweltering summer afternoon almost a decade ago, Meenu Tewari was visiting a weaving company in Surat in western India. Tewari, an urban planner, frequently makes such visits to understand how manufacturing companies operate.…

Too Hot to Work

By Kristina Dahl and Rachel Licker   08/17/21  
Outdoor workers are encountering a deadly risk more frequently than ever before: intensifying extreme heat. As climate change brings one record-heat decade after another, these workers will increasingly find themselves in an impossible situation—having to…

July 2021 was Earth’s hottest month ever recorded, NOAA finds

By Kasha Patel  Photo: Salas/EPA-EFE/Shutterstock   08/13/21  
If you thought this July was just toasty, you probably didn’t realize you were living through the hottest month in modern history. On Friday, the National Oceanic and Atmospheric Administration declared July 2021 the world’s…

The Pacific Northwest, Built for Mild Summers, Is Scorching Yet Again

By Mike Baker and Sergio Olmos  Photo: Tojo Andrianarivo   08/13/21  
Road crews sprayed water on century-old bridges in Seattle on Thursday to keep the steel from expanding in the sizzling heat. In Portland, Ore., where heat has already killed dozens of people this summer, volunteers…

The Pacific Northwest, Built for Mild Summers, Is Scorching Yet Again

By Mike Baker and Sergio Almos  Photo: Tojo Andrianavarivo , The New York Times   08/13/21  
 Road crews sprayed water on century-old bridges in Seattle on Thursday to keep the steel from expanding in the sizzling heat. In Portland, Ore., where heat has already killed dozens of people this summer, volunteers…

Pacific Northwest Bakes Under More Searing Heat

By Molly Taft  Photo: Gillian Flaccus , AP   08/13/21  
The Pacific Northwest is enduring searing heat at the end of this week, a little over a month after multiple days of record-breaking temperatures killed hundreds of people in the region.

First Thing: Oregon declares emergency as another ‘extreme heatwave’ looms

By Nicola Slawson  Photo: Mathieu Lewis- Rolland , Getty Images   08/12/21  
Oregon has declared a state of emergency as the Pacific north-west prepares for triple-digit temperatures just weeks after a deadly heatwavestruck the region. People streamed into cooling centers and misting stations on Wednesday evening in…

Heat wave blasts U.S. with 150 million Americans under alerts

By Matthew Cappucci and Jason Samenow   08/12/21  
Two unforgiving heat waves are roasting opposite corners of the Lower 48, prompting the issuance of heat alerts for more than 150 million people.Excessive-heat warnings or heat advisories stretch nearly 1,500 miles, and some of…

The Climate Crisis

By Bill McKibben   08/11/21  
We all live in two worlds: a physical one and a social one. The new report of the Intergovernmental Panel on Climate Change, which was released on Monday, is ostensibly about the physical world. It…

Earth Is Warmer Than It’s Been in 125,000 Years

By Jeff Tollefson  Photo: David Ryder Getty Images   08/09/21  
Modern society’s continued dependence on fossil fuels is warming the world at a pace that is unprecedented in the past 2,000 years—and its effects are already apparent as record droughts, wildfires and floods devastate communities…

Scientists expected thawing wetlands in Siberia’s permafrost. What they found is ‘much more dangerous.’

By Steven Mufson  Photo: Michael Robinson Chavez , The Washington Post   08/02/21  
Scientists have long been worried about what many call “the methane bomb” — the potentially catastrophic release of methane from thawing wetlands in Siberia’s permafrost.

Colorado’s Subalpine Forests Are Dying from Extreme Heat

By Olivia Rosane  Photo: Robert Andrus   08/02/21  
This is the case in the high-elevation woodlands of the Colorado Rockies, where warmer and drier conditions encourage bark-beetle outbreaks and more extreme wildfires. However, a new study published in the Journal of Ecology this…

Beyond human endurance

By Ruby Mellen and William Neff   07/28/21  
When it comes to heat, the human body is remarkably resilient — it’s the humidity that makes it harder to cool down. And humidity, driven in part by climate change, is increasing. A measurement of…

‘Record-shattering’ heatwaves to become far more likely without urgent climate action, research warns

By Daisy Dunne   07/27/21  
“Record-shattering” events similar to North America’s recent deadly heatwave could become far more likely in the coming years if little is done to tackle rapidly rising greenhouse gas emissions, a new study says. During an…

Climate change will drive rise in ‘record-shattering’ heat extremes

By Ayesha Tandon  Photo: ZUMA Press Inc   07/26/21  
“Record-shattering” extremes – which break weather records by large margins – will become more likely as a result of climate change, a new study finds. The paper, published in Nature Climate Change, finds that the…

Study: Get ready for many more record-shattering heatwaves

By Andrew Freedman  Photo: NASA Earth Observatory   07/26/21  
The recent deadly heat wave in the Pacific Northwest, during which all-time temperature records were shattered by several degrees, is a prologue to what is coming across much of the U.S., Europe and Asia, a…

The world can expect more record-shattering heat waves, research shows.

By Henry Fountain  Photo: Maranie Staab/Reuters   07/26/21  
The ferocious heat wave that hit the Pacific Northwest in late June stunned some climate scientists because it was so much more extreme than anything the region had experienced before. In most heat waves, if…

‘Record-shattering’ heat becoming much more likely, says climate study

By Damian Carrington  Photo: US Forest Service/AFP/Getty Images   07/26/21  
“Record-shattering” heatwaves, even worse than the one that recently hit north-west America, are set to become much more likely in future, according to research. The study is a stark new warning on the rapidly escalating…

Wet-bulb temperature is important, climate experts say. So what is it?

By Caroline Anders  Photo: John Locher/AP   07/24/21  
A measurement long known to climate scientists has begun creeping into the public consciousness as extreme weather conditions force us to reflect on what conditions humans can withstand. In a summer of record-breaking heat in…

Good morning. Summers in Philadelphia and Washington, D.C., are hotter than Atlanta summers were not so long ago.

By David Leonhardt  Photo: Lido Vizzutti   07/22/21  
It’s almost as if the entire East Coast has shifted south. Summers in Portland, Maine, are now almost as hot as summers in Boston were for much of the 20th century. Summers in Boston have…

How Cities Are Preparing for Higher Temperatures

It’s not just climate change, it’s the design choices we’ve made that are turning cities into inhospitable communities. From New York City to Paris, Bloomberg Associates’ Adam Freed shares how cities are preparing for higher…

In America’s least air-conditioned cities, brutal heat changes some people’s minds

By Marc Fisher and Carissa Wolf  Photo: Colin Mulvany/The Spokesman-Review/AP   07/22/21  
In Boise, Idaho, where the temperature topped 97 for a stretch of 14 out of 15 days this month, Sarah O’Keefe refuses to give in. With the mercury repeatedly soaring into triple digits, she started waking…

Climate Disaster Looks Like Thousands of Boiled-Alive Mussels on a Beach in Vancouver

By Terrence Doyle  Photo: Alyssa Gehman   07/21/21  
Tens of thousands of dead mussels lay along the coastline in Vancouver, British Columbia, boiled alive by the extreme heat wave that swept across the Pacific Northwest late last month. The Canadian city’s beaches transformed into mass…

America in 2090: The Impact of Extreme Heat, in Maps

By Susan Joy Hassol and Kristie Ebi   07/21/21  
Yes, it is getting hotter. And while you might be able to escape the intensifying tropical storms, flooding or droughts by moving elsewhere, refuge from extreme heat is no longer easy to find. Even in…

Biden administration, workers grapple with health threats posed by climate change and heat

By Eli Rosenberg and Abha Bhattarai  Photo: Max Whittaker   07/19/21  
Surging temperatures across the West Coast this summer are exposing another way that the changing climate threatens the country’s future: the danger it poses to workers, particularly those who work outside and in warehouses. The…

Extreme heat bakes Northwest and northern Rockies amid high fire danger

By Matthew Cappucci  Photo: David Ryder/Reuters   07/19/21  
For the fourth time in the past month and a half, a strong heat wave is roasting parts of the western U.S., as wildfires run amok. High-temperature records could fall in parts of the northern…

Global satellite data shows clouds will amplify global heating

By Hayley Dunning   07/19/21  
A new approach to analyse satellite measurements of Earth’s cloud cover reveals that clouds are very likely to enhance global heating. The research, by scientists at Imperial College London and the University of East Anglia,…