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Brian Kahn

Brian Kahn

Editorial

Brian Kahn is a Senior Science Writer at Climate Central. He previously worked at the International Research Institute for Climate and Society and partnered with climate.gov to produce multimedia stories, manage social media campaigns and develop version 2.0 of climate.gov. His writing has also appeared in the Wall Street Journal, Grist, the Daily Kos, Justmeans and the Yale Forum on Climate Change in the Media. In previous lives, he led sleigh ride tours through a herd of 7,000 elk and guided tourists around the deepest lake in the U.S. He holds an M.A. in Climate and Society from Columbia University. 

Most Recent News Entries:

The State Dept. Rewrote Its Climate Change Page

The State Dept. Rewrote Its Climate Change Page

Within a day of Rex Tillerson’s swearing in as secretary of state, the State Department’s climate change website began to change. The changes signal a shift away from leading international climate actions that the Obama administration pursued and a pivot toward a more passive role. The Environmental Data Governance Initiative tracked the changes… Read More

Climate Change is on Pace to Kill an Ice Age Remnant

Climate Change is on Pace to Kill an Ice Age Remnant

Humans are in the process of changing the planet in a way that hasn’t happened in more than 2.5 million years. For eons, the Laurentide Ice Sheet has been a fixture of North America. At its peak, it covered the majority of Canada and sent icy tendrils down across the Midwest and Northeast, covering Chicago, New York and Toronto in a mile or more … Read More

Carbon Dioxide Is Rising at Record Rates

Carbon Dioxide Is Rising at Record Rates

The main driver of climate change is carbon dioxide. So the fact that it is rising at rates unseen in the instrumental record — and likely much longer than that — is cause for alarm. Yet here we are. For the second year in a row, carbon dioxide concentrations as measured at Mauna Loa Observatory rose at a record-fast clip, according to new data … Read More

Mass Bleaching Is Hitting the Great Barrier Reef Again

Mass Bleaching Is Hitting the Great Barrier Reef Again

After suffering through the most severe bleaching event ever recorded last year, the Great Barrier Reef is once again being savaged by a marine heat wave. After just one day of aerial surveys, the Great Barrier Reef Marine Park Authority, which oversees the region, has already confirmed that warm waters are causing another mass bleaching. Climate … Read More

February’s Warmth, Brought to You by Climate Change

February’s Warmth, Brought to You by Climate Change

A bonanza of heat records fell throughout February in almost all quarters of the U.S. and research released on Wednesday shows that this pervasive spring-like warmth was made possible by climate change. The rise in planetary heat made the freakishly warm February at least three times more likely than it was around 120 years ago, according to the … Read More

Arctic Sea Ice Continues Its Astonishing Streak of Lows

Arctic Sea Ice Continues Its Astonishing Streak of Lows

Here’s your monthly reminder: something just isn’t right in the Arctic. February continued the string of record or near-record monthly sea ice lows. Warm weather ensured Arctic sea ice hit its lowest extent ever recorded for February. At 455,600 square miles below average, the Arctic was missing a chunk of sea ice four times the size of Italy … Read More

Carbon Dioxide Could Reach 410 PPM This Month

Carbon Dioxide Could Reach 410 PPM This Month

A never-ending stream of carbon pollution ensures that each year the world continues to break records for carbon dioxide in the atmosphere. This year will be no different. Like a rite of spring, carbon dioxide is poised to cruise pass the previous mark set last year and reach heights unseen in human history. In the coming weeks, carbon dioxide … Read More

The Vast Majority of the U.S. Had a Crazy Warm Winter

The Vast Majority of the U.S. Had a Crazy Warm Winter

Meteorological winter is officially over, but it felt like it ended long before its Feb. 28 expiration date. Much of the U.S. basked in relentless warm weather throughout February, turning the clock forward to spring. That follows December and January, which were both markedly warmer than normal for the majority of the country. While scientists … Read More

Scientists Are Poised to Start a New Movement

Scientists Are Poised to Start a New Movement

Raised fists, tricorn hats, banners proclaiming “we are the 99 percent” and Gadsden flags are among the countless symbols and slogans that have pervaded social movements in recent years. They’re images and words that rattle around the brain and have the power to affect serious change — or be relegated to the footnotes of history. Donald Trump’s … Read More

Here’s the Early Context for Trump’s Budget

Here’s the Early Context for Trump’s Budget

The first federal budget process under the Trump administration has officially kicked off. But it’s a long, winding road to the final budget as President Trump lays out his expectations, agencies lay out theirs and the House and Senate weigh in. The opening salvo came on Monday, when administration officials said Trump plans to request a … Read More

The U.S. is Poised to Set a Record-Setting Record

The U.S. is Poised to Set a Record-Setting Record

California's biblical deluge has occupied many a meteorologists’ mind this February. But another notable story is unfolding across the eastern U.S. Unseasonable warmth has kickstarted spring up to a month early in the Southeast, cut into already paltry Great Lakes ice cover and created skiing conditions more reminiscent of April in the Northeast … Read More

This is What 4 Million Solar Panels Look Like From Space

This is What 4 Million Solar Panels Look Like From Space

On the Tibetan Plateau in eastern China, 4 million solar panels silently soak up the sun as part of the Longyangxia Dam Solar Park. It’s the largest solar farm in the world, spreading over 10 square miles of the high desert landscape. The complex sprung into existence in 2013 and has been rapidly expanding ever since. Satellite imagery curated by … Read More

Scientists Got a New Look at the Growing Larsen C Crack

Scientists Got a New Look at the Growing Larsen C Crack

It’s summer in Antarctica, which has scientists scurrying around the seventh continent carrying out various research experiments. That includes monitoring the massive crack that has spread across the Larsen C ice shelf, located on the Antarctic Peninsula. On Tuesday, researchers with the British Antarctic Survey released new aerial footage showing… Read More

This January Was the Third Warmest on Record Globally

This January Was the Third Warmest on Record Globally

While a powerful El Niño has faded, the globe’s heat continues to be an enduring phenomenon due largely to carbon pollution. This January was the third-warmest January on record, according to data released this week from both NASA and the National Oceanic and Atmospheric Administration. The agencies use different baselines and techniques to … Read More

Antarctica Just Shed a Manhattan-Sized Chunk of Ice

Antarctica Just Shed a Manhattan-Sized Chunk of Ice

The growing crack in the Larsen C ice shelf is the most dramatic example of change in Antarctica right now. But it isn’t the continent’s only frozen feature changing in a warming world. Ice around the continent is disappearing as the air and water heat up and the less dramatic breakdowns are just as important to understanding the fate of the ice … Read More

The Winter of Blazing Discontent Continues in the Arctic

The Winter of Blazing Discontent Continues in the Arctic

Weird. Strange. Extreme. Unprecedented. These are some of the words that describe what’s been happening in the Arctic over the past year as surge after surge of warm air have stalled, and at times reversed, sea ice pack growth. And the unfortunate string of superlatives is set to continue this week. Arctic sea ice is already sitting at a record … Read More

The EPA Has Started to Remove Obama-era Information

The EPA Has Started to Remove Obama-era Information

The Environmental Protection Agency’s website has begun to transform under the Trump administration. A group of researchers have found what are likely the first steps in a major overhaul of a site that’s been closely watched since President Trump’s inauguration on Jan. 20. Federal climate plans created under former President Obama, tribal … Read More

The March for Science is Set to Happen on Earth Day

The March for Science is Set to Happen on Earth Day

The March for Science has been scheduled for Saturday, April 22 in Washington, D.C. A growing constellation of marches are also scheduled for that day in cities across the U.S. What began as a Reddit conversation has grown into a movement of scientists and science lovers standing up for evidenced-based policy making and inclusivity in the science… Read More

Scientists Just Sharply Denounced Trump’s Travel Ban

Scientists Just Sharply Denounced Trump’s Travel Ban

The scientific community continues to raise its voice over what it views as President Trump’s dangerous policies. On Tuesday, 151 scientific societies and universities sent a joint letter denouncing the Trump administration’s immigration ban targeting seven predominantly Muslim countries as well as refugees. The International Council for Science… Read More

Women Scientists Advocating for Equality Surge to 14,000

Women Scientists Advocating for Equality Surge to 14,000

It started as a group text message among four friends from graduate school about new kids, puppies and jobs. You know, the successes and struggles that are the building blocks of everyday life. In the wake of the election, the discussion changed. While everyday life continued, the four friends — all women working in the climate and ecology fields … Read More

The Doomsday Clock Just Moved Closer to Midnight

The Doomsday Clock Just Moved Closer to Midnight

It’s been 64 years since the world has been this close to doomsday. The Bulletin of the Atomic Scientists has been updating the doomsday clock regularly for 70 years. On Thursday, they turned the hands to two-and-a-half minutes to midnight. That’s a bit closer than last year, when the clock was three minutes to midnight and the closest the clock … Read More

Scientists Are Planning the Next Big Washington March

Scientists Are Planning the Next Big Washington March

Last weekend, a massive milieu of women in pink hats descended on Washington, D.C. for the Women’s March. The next big protest being planned for the nation’s capital could involve a sea of lab coats (and likely a few pink hats as well). A group of researchers have proposed a March for Science. What started as a discussion on Reddit has quickly … Read More

Silenced Federal Agencies Violating Their Own Policies

Silenced Federal Agencies Violating Their Own Policies

Tuesday marked a flurry of actions by the Trump administration that have cut off some federal scientists from the outside world. The news, reported by outlets including ProPublica, the Huffington Post, BuzzFeed and the Associated Press, centers around the Environmental Protection Agency and U.S. Department of Agriculture. The outlets reported that … Read More

NOAA’s New Satellite Sent Back Its First Amazing Images

NOAA’s New Satellite Sent Back Its First Amazing Images

After years of construction, a harrowing rocket launch and delicate maneuvering to put it in position 22,300 miles above the earth, the most advanced satellite NOAA has ever put in orbit has sent back it’s first pictures. They were worth the wait.… Read More

Trump Just Deleted Obama’s Climate Change Webpages

Trump Just Deleted Obama’s Climate Change Webpages

At the exact hour when the presidency transferred hands, the Obama administration’s climate and energy webpages became some of the first casualties of the new Trump administration. In their place is an “America first” energy plan, which talks at length about tapping fossil fuel resources in the U.S. but makes no mention of climate change or … Read More