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At Midway Point, 2017 Is 2nd-Hottest Year on Record

At Midway Point, 2017 Is 2nd-Hottest Year on Record

At the halfway point of the year, 2017 remains the second-hottest year to date — a surprise given the demise of the El Niño that helped boost temperatures to record levels last year. The continued near-record warmth is a marker of just how much global temperatures have risen thanks to the greenhouse gases accumulating in the atmosphere from fossil… Read More

Countries With Coral Reefs Must Do More on Climate

Countries With Coral Reefs Must Do More on Climate

Countries with responsibility over world heritage-listed coral reefs should adopt ambitious climate change targets, aiming to cut greenhouse gas emissions to levels that would keep global temperature increases to just 1.5°C, the UN agency responsible for overseeing world heritage sites has said. At a meeting of Unesco’s world heritage committee in… Read More

Today’s Extreme Heat May Become Norm Within a Decade

Today’s Extreme Heat May Become Norm Within a Decade

When 2015 blew the record for hottest year out of the water, it made headlines around the world. But a heat record that was so remarkable only two years ago will be just another year by 2040 at the latest, and possibly as early as 2020, regardless of whether the greenhouse gas emissions warming the planet are curtailed. That is the conclusion of a… Read More

Greenhouse Gases Are Rapidly Changing the Atmosphere

Greenhouse Gases Are Rapidly Changing the Atmosphere

Humanity’s grand experiment in the atmosphere continues, and a new report documents just how far it’s gone. On Tuesday, the National Oceanic and Atmospheric Administration released its annual index of 20 key greenhouse gases. It shows that their direct influence on the climate has risen 140 percent since 1750, with 40 percent of that rise coming… Read More

Rising Temps Could Bring Flight Delays Worldwide

Rising Temps Could Bring Flight Delays Worldwide

Imagine boarding a summertime flight at LaGuardia Airport in New York City, only to be told that the airline needs a dozen or so passengers to take a later flight because it’s too hot outside for the plane to take off fully loaded. That could become a common scenario at 19 major airports worldwide as extreme heat caused by global warming disrupts … Read More

Arctic Heat Is Becoming More Common and Persistent

Arctic Heat Is Becoming More Common and Persistent

The Arctic is a bastion of cold, blustery weather. But in the latest sign of how quickly changes are happening, new research published this week shows that the Arctic has seen more frequent bouts of warm air and longer stretches of mild weather. The new findings show that while warm snaps have occurred even as far as back as the 1890s, a massive… Read More

These Images Show Just How Big the Larsen C Iceberg Is

These Images Show Just How Big the Larsen C Iceberg Is

The Larsen C ice shelf has calved an iceberg after months of waiting and watching. With an area the size of Delaware and a volume of 277 cubic miles, its measurements boggle the mind. Even written comparisons don’t fully convey the hulking hunk of ice currently adrift in the Weddell Sea. After all, can you really imagine 463 million Olympic-sized … Read More

The Larsen C Iceberg Finally Broke Away. Now There’s a Trillion-Ton Iceberg Adrift

The Larsen C Iceberg Finally Broke Away. Now There’s a Trillion-Ton Iceberg Adrift

The inevitable moment of reckoning for the Larsen C ice shelf arrived. The growing rift that carved across one of the Antarctica Peninsula’s largest ice shelves reached its end, sending a 2,240-square mile iceberg spiraling into the sea. Welcome to the world, iceberg A68. The massive slab of ice, equivalent to the size of Delaware and large enough … Read More