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.

CREDIT: Propublica


Extreme heat waves broiling the planet in 2024 aren’t normal: How climate change is heating up weather around the world

By Mathew Barlow, Jeffrey Basara 07/17/24
Less than a month into summer 2024, the vast majority of the U.S. population has already experienced an extreme heat wave. Millions of people were under heat warnings across the western U.S. in early July…
Read more

I Went to Death Valley to Experience 129 Degrees

By Ross Andersen 07/11/24
A large digital thermometer sits at the entrance to the gleaming mid-century-modern visitor center in Furnace Creek, California. When I arrived on Sunday afternoon, it was thronged with people with their phones out, taking pictures.…
Read more

Heat Wave Cities Along the East Coast Bear the Worst Conditions

Scorching temperatures have stretched for seven consecutive days in many parts of the country. But forecasters predict that there will be some relief early this week.
Read more

Report: Extreme heat events created $7.7 billion in hidden costs in California

By Caelyn Pender 07/10/24
How much do heatwaves cost? The hidden costs of extreme heat — from lost productivity to healthcare for heat-related illnesses — totaled more than $7.7 billion over the last decade, a new report from the…
Read more

Houston Bakes in Post-Beryl Blackout as Biden Declares Emergency

By Will Wade and Kevin Crowley 07/10/24
Houston is baking under dangerous heat as more than 2 million homes and businesses in the area remain without power after Hurricane Beryl and signs of fuel shortages begin to emerge. President Joe Biden declared…
Read more

Temperatures 1.5C above pre-industrial era average for 12 months, data shows

By Ajit Niranjan 07/08/24
The world has baked for 12 consecutive months in temperatures 1.5C (2.7F) greater than their average before the fossil fuel era, new data shows. Temperatures between July 2023 and June 2024 were the highest on…
Read more

Last week’s heat wave brought a sharp spike in ER visits across New England

By Helena Getahun-Hawkins 06/26/24
In a heatwave that spanned several states last week, New England experienced the highest rate of heat-related emergency department visits in the country, Centers for Disease Control and Prevention data show.
Read more

A New Danger at America’s National Parks

By Kylie Mohr 06/26/24
The thermometer read 121 degrees Fahrenheit when 71-year-old Steve Curry collapsed outside a restroom in Death Valley National Park last summer. Curry, who’d reportedly been hiking on a nearby trail in Golden Canyon, was just…
Read more

The heat crisis is a housing crisis

By Manuela Andreoni 06/25/24
Look, for example, at a move earlier this month by the Biden administration: For the first time, residents of public housing can ask the federal government to pay their air-conditioning bills during periods of extreme…
Read more

Billions of people just felt the deadly intensity of climate-fueled heat waves

By Sarah Kaplan and Scott Dance 06/22/24
Dozens of bodies were discovered in Delhi during a two-day stretch this week when even sundown brought no relief from sweltering heat and humidity. Tourists died or went missing as the mercury surged in Greece.…
Read more

Climate Change Is ‘Loading the Weather Dice Against Us’

By Akshat Rathi, Eric Roston, and Mythili Rao 06/20/24
This year is shaping up to be the warmest on record, and extreme weather is already wreaking havoc around the world. There’s been flooding in the United Arab Emirates and Brazil, hail and record rainfall…
Read more

Rural America Lags Cities in Helping People Beat the Heat

By Dionne Searcey 06/20/24
In Caribou, Maine, a town of 7,400, the splash pad was packed with children at noon on Wednesday as temperatures soared. But next to it, at a cooling center for the rural area’s many elderly…
Read more


April 2024 Selected Climate Anomalies and Events Map

In January 2024, the NOAA Global Surface Temperature (NOAAGlobalTemp) dataset version 6.0.0 replaced version 5.1.0. This new version incorporates an artificial neural network (ANN) method to improve the spatial interporlation of monthly land surface air…

Climate Change and Extreme Heat

The United States experienced a series of record-breaking heat waves during the summer of 2023. The heat waves brought extreme temperatures to various U.S. regions, including Puerto Rico, the southern Plains, and the Northeast and…

U.S. saw its 9th-warmest August on record

A warm August wrapped up a sweltering Summer 2023 across the U.S., according to NOAA’s National Centers for Environmental Information.

The Heat Tracker

Extreme heat is the deadliest weather phenomenon in the United States. It's also one of the easiest to underestimate: We feel it on our skin, or perhaps see it shimmering in the air around us,…

The Climate Dice are Loaded. Now, a New Frontier?

Andy Revkin recently asked whether the “climate dice” have become more “loaded” in the last 15 years. Climate dice were defined1 in 1988, after we realized that the next cool summer may cause the public…

Earth is at its hottest in thousands of years. Here’s how we know.

Observations from both satellites and the Earth’s surface are indisputable — the planet has warmed rapidly over the past 44 years. As far back as 1850, data from weather stations all over the globe make…

How to Stay Cool and Safe in a Heat Wave

Extreme heat is becoming increasingly common across the globe, with longer, more frequent heat waves. These rising temperatures can put many at risk for heat-related illnesses, including heat stroke and heat exhaustion. Read on for…

Maps show where extreme heat shattered 7,000 records this summer

It was the summer that wouldn’t quit. From early June to straight past Labor Day, waves upon waves of heat scorched and baked the country, smashing thousands of temperature records along the way.

An “Extreme Heat Belt” will soon emerge in the U.S., study warns

A new study reveals the emergence of an "extreme heat belt" from Texas to Illinois, where the heat index could reach 125°F at least one day a year by 2053.

More dangerous heat waves are on the way: See the impact by Zip code.

It was the middle of July and already this summer had become a top contender for the hottest in Texas’s recorded history. In San Antonio, which by July would normally experience about three days of…

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.

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…

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.


How Heat Affects the Brain

By Dana G. Smith   06/19/24  
In July 2016, a heat wave hit Boston, with daytime temperatures averaging 92 degrees for five days in a row. Some local university students who were staying in town for the summer got lucky and…
Read more

This Isn’t Your Grandparents’ Summer Heat

By Andrea Thompson   06/19/24  
Children growing up in Philadelphia today experience more than four more heat waves every summer than those who grew up there in the 1960s. Kids in San Francisco today endure nearly seven more heat waves…
Read more

Why Longer Heat Waves Are So Dangerous

By Raymond Zhong   06/18/24  
For tens of millions of Americans this week, summer is starting with a multiday blast of fierce heat. Temperatures in parts of the country are likely to be well into the 90s through the weekend.…
Read more

How hot? A city-by-city forecast for the prolonged heat wave this week.

By Dan Stillman   06/18/24  
Numerous cities in the Midwest, the Northeast and the Mid-Atlantic are expecting multiple days of extreme heat and high humidity this week into the weekend, raising concerns regarding heat illness, especially for outdoor workers and…
Read more

Northeast Braces for First Severe Heat of the Year

By Johnny Diaz   06/17/24  
A record-breaking heat wave with a combination of humidity and temperatures well into the 90s was descending on cities in the Midwest and heading to the Northeast this week in what is expected to be…
Read more

But It’s Only June: An Early Blast of Heat Grips Much of the U.S.

By Julie Bosman   06/17/24  
Larry White was thrown a little off-kilter by the soupy, 93-degree temperature in Chicago on Monday morning. It’s only mid-June, he said with annoyance, and until this week he barely needed the air-conditioning in his…
Read more

NYC braces for ‘heat dome’ as meteorologists predict historically hot summer

By Elizabeth Shwe   06/13/24  
New York City’s first big heat wave of the year is expected to arrive next week — the start of what climate experts believe will be a historically hot summer.
Read more

Extreme Heat Risks for Children

Extreme heat is the deadliest weather-related hazard in the U.S. Children — especially babies, younger kids, and athletes — are among those most vulnerable to heat-related illness.
Read more

A New Way to Talk About Heat

By Austyn Gaffney   06/11/24  
Last month was not only the hottest May on record, it was the 12th month in a row to earn such a distinction. But was it “stickier”? A study published in May in The Journal…
Read more

Dozens treated for heat during Donald Trump rally in Las Vegas

By Molly McBride and Rachel Zalucki   06/10/24  
Many gathered at Sunset Park in Las Vegas to attend former president Donald Trump’s rally but were met with triple-digit heat that caused some people to go to the hospital. The Clark County Fire Department…
Read more

Early heat wave breaks records in western US

Scorching temperatures broke early summer records in the western United States, before the region's first major heat wave of the year eased slightly Friday.
Read more

Brutal heatwave cooks US south-west, an early sign of sizzling summer ahead

By Gabrielle Canon and Dani Anguiano   06/06/24  
Millions of Americans are sweltering as experts warn early heat could herald next record-smashing summerWith the official start of summer still weeks away, a record-setting heatwave is cooking the south-western US, causing dangerous conditions far…
Read more

Carbon dioxide levels rising ‘faster than ever’ amid unprecedented heat: Report

By Saul Elbein   06/06/24  
Levels of planet-heating carbon dioxide gas in the atmosphere are rising “faster than ever,” according to a report published Thursday. That spells serious disruption for the climate in decades to come — even as human…
Read more

A year of record global heat has pushed Earth closer to dangerous threshold

By Scott Dance   06/05/24  
A streak of record-setting heat that began last summer has now persisted for an entire year across the globe, researchers announced Wednesday, pushing Earth closer to a dangerous threshold that the world’s nations have pledged…
Read more

AP analysis finds 2023 set record for US heat deaths, killing in areas that used to handle the heat

By Seth Borenstein and Others   05/31/24  
David Hom suffered from diabetes and felt nauseated before he went out to hang his laundry in 108-degree weather, another day in Arizona’s record-smashing, unrelenting July heat wave.
Read more

California braces for triple-digit temperatures. Here’s where it will be the hottest

By Greg Porter   05/31/24  
The first major heat wave of the season is set to impact much of the western U.S. next week, including large parts of California. Starting on Tuesday, all of the Central Valley and parts of…
Read more

‘La Niña Really Can’t Come Soon Enough’

By Marina Koren   05/29/24  
There are still a few days left, but this month is on track to be the warmest May ever documented. In fact, every month since last June has broken worldwide temperature records. The world’s oceans,…
Read more

As extreme heat rises, its impact will be uneven

By Hayley Smith   05/27/24  
The next quarter of a century will bring considerable climate danger to millions of Americans living in disadvantaged communities, who will experience not only increased exposure to life-threatening extreme heat but also greater hardships from…
Read more

‘New Territory’ for Americans: Deadly Heat in the Workplace

By Coral Davenport and Noah Weiland   05/25/24  
For more than two years, a group of health experts, economists and lawyers in the U.S. government has worked to address a growing public health crisis: people dying on the job from extreme heat.
Read more

Last Summer Was the Hottest in 2,000 Years

By Jessica Hullinger   05/15/24  
We already know that last summer was the hottest “on record” – but those records only really go back to the 1850s or so. A new study published in the journal Nature looks further into…
Read more

April 2024: Earth’s 11th-consecutive warmest month on record

By Jeff Masters   05/14/24  
April 2024 was Earth’s warmest April since global record-keeping began in 1850 and was the planet’s 11th consecutive warmest month on record, NOAA’s National Centers for Environmental Information, or NCEI, reported May 14. Record heat…
Read more

Ancient trees reveal last summer hottest in 2,000 years

By Matt McGrath and Mark Poynting   05/14/24  
Clues hidden deep in the trunks of ancient trees have revealed that last summer was the northern hemisphere's hottest in 2,000 years. Last year had already been confirmed as the world's warmest on record by…
Read more

2023 summer warmth unparalleled over the past 2,000 years

By Jan Esper, Max Torbenson & Ulf Büntgen   05/14/24  
Including an exceptionally warm Northern Hemisphere (NH) summer1,2, 2023 has been reported as the hottest year on record3-5. Contextualizing recent anthropogenic warming against past natural variability is nontrivial, however, because the sparse 19th century meteorological…
Read more

‘Alarming’ Ocean Temperatures Suggest This Hurricane Season Will Be a Daunting One

By Judson Jones   04/09/24  
A key area of the Atlantic Ocean where hurricanes form is already abnormally warm, much warmer than an ideal swimming pool temperature of about 80 degrees and on the cusp of feeling more like warm…
Read more

Broken record: March is 10th straight month to be hottest on record, scientists say

By Suman Naishadham   04/09/24  
For the 10th consecutive month, Earth in March set a new monthly record for global heat — with both air temperatures and the world’s oceans hitting an all-time high for the month, the European Union…
Read more

Heat Waves Are Moving Slower and Staying Longer, Study Finds

By Delger Erdenesanaa   03/29/24  
When heat waves swept across large parts of the planet last summer, in many places the oppressive temperatures loitered for days or weeks at a time. As climate change warms the planet, heat waves are…
Read more

‘Humbling, and a bit worrying’: Scientists fail to fully explain record global heat

By Hayley Smith   03/27/24  
Deadly heat in the Southwest. Hot-tub temperatures in the Atlantic Ocean. Sweltering conditions in Europe, Asia and South America. That 2023 was Earth’s hottest year on record was in some ways no surprise. For decades,…
Read more

See one cherry tree’s rush to an early bloom, day by day

By Niko Kommenda and Harry Stevens   03/22/24  
Two weeks ago, we started photographing the cherry trees whose spectacular white blooms mark the start of spring in the nation’s capital. We thought we had plenty of time to capture the buds gradually unfold.…
Read more

Scientist: 2023 heat may put world in “uncharted territory”

By Andrew Freedman   03/21/24  
The head of NASA's Goddard Institute for Space Studies is sounding an alarm in the scientific community — albeit a nuanced one — over how unexpectedly significant 2023's warming was. Why it matters: Scientists don't…
Read more

‘Red alert’: last year was hottest on record by clear margin, says UN report

By Ajit Niranjan   03/19/24  
The world has never been closer to breaching the 1.5C (2.7F) global heating limit, even if only temporarily, the United Nations’ weather agency has warned. The World Meteorological Organization (WMO) confirmed on Tuesday that 2023…
Read more

Climate models can’t explain 2023’s huge heat anomaly — we could be in uncharted territory

By Gavin Schmidt   03/19/24  
When I took over as the director of NASA’s Goddard Institute for Space Studies, I inherited a project that tracks temperature changes since 1880. Using this trove of data, I’ve made climate predictions at the…
Read more

Global hot streak continues: February was Earth’s warmest on record

By Hayley Smith   03/07/24  
The planet has experienced its ninth consecutive month of record-breaking warmth, with a simmering February rounding out the Northern Hemisphere’s hottest meteorological winter on record, international climate officials announced this week. The global surface temperature…
Read more

Warm Winter Days Boosted by Climate Change in U.S. Cities

Carbon pollution drove abnormal warmth this winter. New Climate Central analysis shows which U.S. cities, states, and regions felt the strongest influence of climate change on daily average temperatures between December 2023 and February 2024.
Read more

Earth posts warmest February and ninth straight record-setting month

By Dan Stillman   03/06/24  
The Earth just observed its warmest February, setting a monthly record for the ninth time in a row, the European Union’s Copernicus Climate Change Service announced Wednesday.
Read more

Winter is warming almost everywhere. See how it’s changed in your town.

By Harry Stevens Climate Lab columnist   03/01/24  
As another winter nears its close, we bid farewell to the season of merriment, good cheer and inane arguments about global warming. If you think global warming is nonsense, winter offers many cold things to…
Read more

The Heat Continues

By David Houle   02/22/24  
2023 was the hottest year in the last 120,000 years, give or take a millennium. In a column here a month ago, I wrote about the four metrics that humanity needed to look at in…
Read more

These farmworkers created America’s strongest workplace heat rules

By Nicolás Rivero and Eva Marie Uzcategui   02/17/24  
The sweet, earthy scent of tomatoes hangs in the air as a crew of 44 workers speeds through rows of vines. They fill 32-pound buckets with fruit, then deliver them to co-workers waiting on the…
Read more

February on course to break unprecedented number of heat records

By Jonathan Watts   02/17/24  
Rapid ocean warming and unusually hot winter days recorded as human-made global heating combines with El NiñoFebruary is on course to break a record number of heat records, meteorologists say, as human-made global heating and…
Read more

2024 Begins With More Record Heat Worldwide

By Raymond Zhong and Elena Shao   02/07/24  
The exceptional warmth that first enveloped the planet last summer is continuing strong into 2024: Last month clocked in as the hottest January ever measured, the European Union climate monitor announced on Thursday.
Read more

Watch the Earth breathe for one year

Analysis by Harry Stevens   02/01/24  
I like to think the French physicist Joseph Fourier appreciated the irony that he, of all people, was the one who discovered the greenhouse effect. Here was a man who kept his Paris apartment tropically…
Read more

Washington soars to 80 degrees, its highest January temperature on record

By Ian Livingston   01/26/24  
Welcome to June in January and record-shattering winter warmth in Washington. Temperatures surged about 35 degrees above normal Friday, as highs climbed well into the 70s to near 80 across the region, breaking records that…
Read more

Scientists unnerved by record shattering 2023 temperatures

By Andrew Freedman   01/12/24  
Climate scientists lack an explanation for why 2023 was the world's hottest year by such a large margin, calling the records revealed Friday "astonishing." Why it matters: Without an adequate explanation for 2023's record global…
Read more

Scientists Are Already Bracing for Record-Breaking Heat in 2024

By Zahra Hirji, Olivia Rudgard, and Brian Kahn   01/09/24  
This year will be hot. Very hot. So hot that some experts are already predicting it may beat 2023 as the hottest year in recorded history. Climate change is, of course, primarily responsible. Burning fossil…
Read more

Global heating will pass 1.5C threshold this year, top ex-Nasa scientist says

By Oliver Milman   01/08/24  
The internationally agreed threshold to prevent the Earth from spiraling into a new superheated era will be “passed for all practical purposes” during 2024, the man known as the godfather of climate science has warned.…
Read more

Can you guess how crazy last year’s weather was? Try this game.

Analysis by Harry Stevens   01/03/24  
The pollsters here at The Washington Post recently asked 1,404 random Americans: “Do you think human activity is or is not causing changes to the world’s climate, including an increase in average temperature?” Would you…
Read more

More Than Words: 10 Charts That Defined 2023

By Steve Rattner   12/28/23  
Some years are defined by a single event or person — a pandemic, a recession, an insurrection — while others are buffeted by a series of disparate forces. Such was 2023. The economy and inflation…
Read more

Earth passed a feared global warming milestone Friday, at least briefly

By Scott Dance   11/19/23  
The planet marked an ominous milestone Friday: The first day global warmth crossed a threshold, if only briefly, that climate scientists have warned could have calamitous consequences. Preliminary data show global temperatures averaged more than…
Read more

You’ve just lived through Earth’s hottest 12 months on record

By Scott Dance   11/09/23  
The Earth just endured its hottest 12 months in the modern era, and probably the hottest in 125,000 years, according to an analysis published Thursday.
Read more

Arizona’s extreme heat threatens ‘spectacular migrations’ of butterflies

By Kevinjonah Paguio   10/15/23  
This time of year, butterflies are in backyards and parks, but it may look different this season. This year’s extreme heat is expected to affect all parts of the ecosystem, including butterflies and their migration.
Read more

Global warning: 2023 will be the hottest year on record

By Andrew Freedman   10/13/23  
Sweltering temperatures baking the globe this year, both on land and sea, have amplified the odds of the Earth setting an inauspicious record.
Read more