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.

About 71.2 million people — 22 percent of the population of the contiguous United States — live in the areas expected to have dangerous levels of heat. The heat index is a measure of how hot it really feels outside, taking into account humidity along with temperature. The measurement is used to indicate when the level of heat is dangerous for the human body while in the shade. When out in the sun, a person could perceive that temperature as being up to 15 degrees Fahrenheit higher.


Will global warming make temperature less deadly?

By Harry Stevens 02/16/23
The scientific paper published in the June 2021 issue of the journal Nature Climate Change was alarming. Between 1991 and 2018, the peer-reviewed study reported, more than one-third of deaths from heat exposure were linked…
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The surprising reasons parts of Earth are warming more slowly

By Scott Dance and Others 12/14/22
It has become common to focus on the fastest-warming places, regions where human-charged climate change is raising temperatures at an alarming speed. In the Arctic, where sea ice is rapidly disappearing, warming may be occurring…
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Extreme heat will change us

By Alissa J. Rubin, Ben Hubbard, Josh Holder et al. 11/18/22
On a treeless street under a blazing sun, Abbas Abdul Karim, a welder with 25 years experience, labors over a metal bench. Everyone who lives in Basra, Iraq, reckons with intense heat, but for Abbas…
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In a warming world, who wins: Goats or sheep?

By Dino Grandoni 10/17/22
The decline of ice in Glacier National Park is revealing once buried salt licks. Now mountain goats and bighorn sheep are fighting over them.
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Extreme heat: Preparing for the heat waves of the future

Climate change is already having severe impacts across our planet, bringing new and previously unimaginable challenges to the people least responsible for greenhouse gas emissions. This joint report by the IFRC, United Nations Office for…
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U.S. Heat Wave Hits Supermarkets’ Produce Sections

By Jaewon Kang and Others 09/11/22
High temperatures in the Western U.S. are hitting the produce industry, damaging crops, shrinking shipments and leaving fewer leafy greens and fruits on supermarket shelves. A California grower said some of his lettuce leaves are…
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California set to be first state with extreme heat warning system under bills signed by Newsom

By Hannah Fry and Others 09/09/22
As much of the West continued to swelter in a record-breaking heat wave, Gov. Gavin Newsom on Friday signed a package of legislation aimed at protecting Californians from extreme heat, including establishing a statewide warning…
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Extreme Heat Poses an Emerging Threat to Food Crops

By Liza Gross 09/09/22
As the American West grapples with another dangerous heat wave in the midst of a megadrought, official advisories rightly focus on short-term measures to keep people cool and hydrated. Yet as record-breaking heat waves become…
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No September on record in the West has seen a heat wave like this

By Jason Samenow 09/08/22
The heat wave that’s been gripping California and other parts of the West for 10 days and counting is the most severe ever recorded in September, weather experts have said — confirming what California’s governor…
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Weather Updates: California avoids rolling blackouts

Cities across California set record high temperatures on Tuesday, including Sacramento at 116 degrees. The heat wave will continue across the West on Wednesday, but ease by the weekend.
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Punishing heat wave in West sets records, fuels fires

By Matthew Cappucci, Diana Leonard and Others 09/02/22
Nearly 50 million Americans are under alerts through Labor Day weekend because of a prolonged heat wave that has already set dozens of records throughout the West...
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Night-time heat is killing crops. Scientists are rushing to find resilient plants

As the sun sets outside with temperatures in the high 80s, where they’ll stay most of the night, several varieties of potted rice plants grow in two sections of a greenhouse on the roof of…
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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.



Australia heatwave: Next week could see hottest day on record – BBC News

Fire warnings are in place for many areas including Perth, where temperatures are set to remain high....
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Extreme Heat-Stressed Locations Could Increase by 80%

By Tim Radford   10/14/19  
By Tim RadfordScientists in the U.S. have added a new dimension to the growing hazard of extreme heat. As global average temperatures rise, so do the...
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September 2019 Was Earth’s Hottest September on Record

September 2019 was the hottest September on record, the EU's Copernicus Climate Change Service reported Friday. This makes it the fourth month in a row this...
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Endless Summer? NOAA Predicts U.S. Will Have Above Average Autumn Heat

Most of the U.S. will likely see higher than normal temperatures this autumn, according to a three-month forecast projected by the National Oceanic and Atmospheric Administration...
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Earth warming more quickly than thought, new climate models show

By Marlowe HOOD, AFP   09/17/19  
Greenhouse gases thrust into the atmosphere mainly by burning fossil fuels are warming Earth's surface more quickly than previously understood, according to new climate models set to replace those used in current UN projections, scientists…
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Dangerous new hot zones are spreading around the world

By Chris Mooney and John Muyskens   09/11/19  
The day the yellow clams turned black is seared in Ramón Agüero’s memory.
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Guest post: How heatwave images in the media can better represent climate risks

Dr Saffron O’Neill is an associate professor in geography at the University of Exeter. Between 2012 and 2017 she held an Economic and Social Research Council Future Research Leader Fellowship on “Visualising climate change”. As…
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Can We Survive Extreme Heat?

By Jeff Goodell   08/27/19  
On a scorching day in downtown Phoenix, when the temperature soars to 115°F or higher, heat becomes a lethal force. Sunshine assaults you, forcing you to seek cover. The air feels solid, a hazy, ozone-soaked…
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July 2019 Was the Hottest Month Ever Recorded, NOAA Confirms

Humanity faced its hottest month in at least 140 years in July, the US National Oceanic and Atmospheric Administration (NOAA) said on Thursday. The finding confirms...
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Extreme climate change has reached the United States: Here are America’s fastest-warming places

By Steven Mufson , Chris Mooney , Juliet Eilperin and John Muyskens   08/13/19  
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.
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Climate change made Europe’s 2019 record heatwave up to ‘100 times more likely’

The run of unprecedented temperatures in July – which sent records tumbling in the UK, the Netherlands, Belgium and Germany – would have been “extremely unlikely” without climate change, according to a new quick-fire analysis. The…
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Second Major Heat Wave This Summer Smashes Records Across Europe

Europe's second extreme heat wave of the summer has lived up to predictions, smashing records across the continent. Paris recorded its all-time highest temperature of 42.6...
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Europe Braces for Second Extreme Heat Wave This Summer

Europe is gearing up for another extreme heat wave that could set all-time records for several European countries. Paris could surpass its all-time high of 40.4...
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African Americans Are Disproportionately Exposed to Extreme Heat

By Adrienne HollisClimate change is a threat multiplier. This is a fact I know to be true. I also know that our most vulnerable populations, particularly...
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How cities are redesigning to deal with extreme heat

As days of extreme heat get more common, there are a few simple solutions that cities around the world are implementing to keep people a little more comfortable. ...
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Louisiana, Florida to see biggest spike in ‘extreme heat’ days, study says; could force ‘culture shift’

By Caitlin Looby   07/16/19  
Dangerously hot days may become more of a summertime norm in Louisiana in the later part of the 21st century, with extreme heat no longer measured in days but in weeks and months, sobering new data from…
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‘Off-the-charts’ heat to affect millions in U.S. in coming decades

By Stephen Leahy   07/16/19  
In less than 20 years, millions of people in the United States could be exposed to dangerous “off-the-charts” heat conditions of 127 degrees Fahrenheit or more, a startling new report has found. In 60 years…
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Has the Earth Ever Been This Hot Before?

By Isobel Whitcomb   07/13/19  
Would you ever go on vacation to the North Pole? Unless you like subzero temperatures and Nordic-ski treks, probably not. But if you lived 56 million years ago, you might answer differently. Back then, you…
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How Thoreau’s 19th-Century Observations Are Helping Shape Science Today

BY Evan Nicole Brown   07/09/19  
For one thing, they tell us that plants aren’t blooming when they used to at Walden Pond—or most anywhere else.
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European Heat Wave? It’s the New Normal.

By Megan Specia   06/26/19  
Temperatures were set to soar across Europe beginning on Wednesday, with authorities from Paris to Warsaw issuing heat alerts, canceling events and bracing for potentially record heat across the region.
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Tens of Thousands Flee Extreme Heatwave in India as Temperatures Topping 120°F Kill Dozens Across Country

By Julia ConleyNearly 50 people died on Saturday in one Indian state as record-breaking heatwaves across the country have caused an increasingly desperate situation.Officials in Bihar reported that as of Monday, 76 people in total…
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Immediate Action Needed to Avoid Thousands of Heat-Related Deaths in U.S., New Study Says

by Jordan Davidson Taking action to stop the mercury from rising is a matter of life and death in the U.S., according to a new study published in the journal Science Advances. NoneExtreme heat due…
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Heat wave: Western US bakes as temperatures soar to 120 degrees

Folks in the western U.S. are sweltering under an unusually intense June heat wave, with temperatures soaring to record highs all the way from Oregon to Arizona.
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In These U.S. Cities, Heat Waves Will Kill Hundreds More as Temperatures Rise

By Bob Berwyn   06/05/19  
Even half a degree warming matters. A new study shows how meeting the Paris climate agreement goals would make a difference in lives saved or lost.
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Japan’s deadly 2018 heatwave ‘could not have happened without climate change’

The record-breaking 2018 summer heatwave in Japan in which more than 1,000 people died “could not have happened without human-induced global warming”, a study finds. And the extreme heat felt in Japan last summer could…
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It was 84 degrees near the Arctic Ocean this weekend as carbon dioxide hit its highest level in human history

By Jason Samenow   05/14/19  
Over the weekend, the climate system sounded simultaneous alarms. Near the entrance to the Arctic Ocean in northwest Russia, the temperature surged to 84 degrees Fahrenheit (29 Celsius). Meanwhile, the concentration of carbon dioxide in…
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Guest post: How will climate change’s warming pattern look in the future?

Dr Andrew King is lecturer in climate science at the School of Earth Sciences and ARC Centre of Excellence for Climate Extremes at the University of Melbourne. The world has not warmed evenly as the…
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Farmworkers Are on the Frontlines of Climate Change. Can New Laws Protect Them?

By Nano Riley   02/27/19  
As temperatures heat up, farmworkers face mounting health risks. Some advocates are creating and expanding laws to protect them.
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How Phoenix is working to beat urban heat

Global warming and an urban heat island effect pose a major health challenge to the city....
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It’s Official: 2018 Was the Fourth-Warmest Year on Record

By John Schwartz and Nadja Popovich   02/06/19  
NASA scientists announced Wednesday that the Earth’s average surface temperature in 2018 was the fourth highest in nearly 140 years of record-keeping and a continuation of an unmistakable warming trend.
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Heat and Drought Could Threaten World Beer Supply

By James Gorman   10/15/18  
If horrific hurricanes and a new, scarier-than-ever United Nations report don’t change attitudes on climate change, perhaps a new report on barley will. A small international team of scientists considered what the effect of climate…
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Trump administration sees a 7-degree rise in global temperatures by 2100

By Juliet Eilperin, Brady Dennis and Chris Mooney   09/28/18  
Last month, deep in a 500-page environmental impact statement, the Trump administration made a startling assumption: On its current course, the planet will warm a disastrous seven degrees by the end of this century. But…
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Too Hot for Work?

By Michelle Chen   09/20/18  
Climate change is already worsening working conditions across the country.
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Heat waves took a deadly toll this summer

  Heat waves took a deadly toll this summer By Philip Finkelstein With the term “climate change” used more often than “global warming” these days, sometimes it’s easy to overlook one of the key changes…
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Extreme Heat Likely Cooked 2,000 Fish to Death in Malibu Lagoon

By Kimberly Hickok   08/30/18  
Some fish just can't take the heat. And unfortunately, that's probably why an estimated 2,000 striped mullet (Mugil cephalus) suddenly died in Malibu Lagoon and Malibu Creek in Southern California.
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The next five years will be ‘anomalously warm,’ scientists predict

By Chris Mooney   08/14/18  
The past four years have been the four warmest ever recorded — and now, according to a new scientific forecast, the next five will also probably be “anomalously warm,” even beyond what the steady increase…
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Domino-effect of climate events could move Earth into a ‘hothouse’ state

By Jonathan Watts   08/07/18  
A domino-like cascade of melting ice, warming seas, shifting currents and dying forests could tilt the Earth into a “hothouse” state beyond which human efforts to reduce emissions will be increasingly futile, a group of…
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Death Valley breaks own record for hottest month ever recorded on Earth

By Aris Folley   08/01/18  
California's Death Valley just broke its own record for hottest month on Earth since record-keeping began.
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Large area of China could soon be virtually uninhabitable as deadly heatwaves become more intense, scientists warn

By Josh Gabbatiss   07/31/18  
Research adds to body of evidence showing heat-related deaths around world will increase dramatically in coming decades.
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How Record Heat Wreaked Havoc on Four Continents

By Somini Sengupta, Tiffany May and Zia ur-Rehman   07/30/18  
Expect more. That’s the verdict of climate scientists to the record-high temperatures this spring and summer in vastly different climate zones.  The contiguous United States had its hottest month of May and the third-hottest month…
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This Summer’s Heat Waves Could Be the Strongest Climate Signal Yet

By Bob Berwyn   07/28/18  
Temperatures have spiked to deadly new highs this summer, with extreme heat, droughts and wildfires spread across the Northern Hemisphere, and scientists says there should not be any doubt that some of the deadliest of…
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Climate change made 2018 European heatwave up to ‘five times’ more likely

By Robert McSweeney   07/27/18  
A rapid assessment by scientists of the ongoing heatwave across northern Europe this summer has found that human-caused climate change made it as much as five times more likely to have occurred.
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The people who’ll be most hurt by climate swings did the least to cause them, study says

By Chris Mooney   05/02/18  
On a per-capita basis, greenhouse gas emissions are far higher in wealthy countries like the United States. Indeed, the Northern Hemisphere, where 13 of the 15 largest countries by GDP are found, emits far more…
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Deadly Heat Waves Threaten Third of the World

By Megan Trimble   06/20/17  
Scorching heat grounded planes in parts of the U.S. on Monday, the same day researchers released a study that finds the globe is only getting hotter and, as a result, potentially deadlier. Currently, nearly a…
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Last Month Just “Obliterated” Temperature Records as The Hottest June to Date

By Aylin Woodward   07/04/19  
Europe's record-breaking heat wave last week, it turns out, was the emphatic conclusion to the hottest June ever recorded.
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A Heat Wave Tests Europe’s Defenses. Expect More.

By Somini Sengupta   07/02/19  
Across Europe in June, from the Czech Republic to Switzerland to Spain, new heat records tested the Continent’s defenses. Schools were shuttered. Villages were evacuated. Soldiers battled wildfires. And social workers raced to the homes…
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One Thing You Can Do: Beat the Heat Efficiently

By Eduardo Garcia, Henry Fountain and Somini Sengupta   07/03/19  
Also this week, a sand surplus in Greenland and New York’s climate resolution.
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Without swift action on climate change, heat waves could kill thousands in U.S. cities

By Jaclyn Jeffrey-Wilensky   06/16/19  
If global warming sometimes seems like a distant or abstract threat, new research casts the phenomenon in stark, life-or-death terms. It predicts that in the absence of significant progress in efforts to curb emissions of…
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State of the climate: Heat across Earth’s surface and oceans mark early 2019

By Zeke Hausfather   04/23/19  
Global surface temperatures in 2019 are on track to be either the second or third warmest since records began in the mid-1800s, behind only 2016 and possibly 2017.
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