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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:

Climate Calculator Lets You Create a New World

Climate Calculator Lets You Create a New World

Have you always wanted to wield the power of a world leader but been unable find a suitable in? Well, your search is finally be over. The U.K. government has released its Global Calculator, a climate model hitherto only available to world governments to understand how their actions work in concert to reduce global warming. Now the public can crunch… Read More

A Country Divided by Seasons and Warming

A Country Divided by Seasons and Warming

The U.S. is no stranger to differences among its sometimes bickering states, so perhaps it’s no surprise that even global warming finds itself with some regional rivalries. A Climate Central analysis of regional and seasonal temperature differences in the contiguous U.S. since 1970 reveals a country divided along temperature lines, just as it is i… Read More

Thunderstorms Helping Bring Ozone Down to Earth

Thunderstorms Helping Bring Ozone Down to Earth

Ozone is a bit of a shape-shifting chemical. High in the stratosphere, ozone acts as an ultraviolet-blocking shield around Earth (which is why the ozone hole is such a problem). At ground level, it’s a pollutant that can cause serious respiratory problems. And if it finds its way into the troposphere — the lowest level of the atmosphere — ozone ser… Read More

Warming Ups Odds of Extreme La Niñas, Wild Weather

Warming Ups Odds of Extreme La Niñas, Wild Weather

La Niña events can drive weather patterns wild around the globe from helping exacerbate drought in West Africa and increase rainfall in areas as diverse as South Asia and the Pacific Northwest The more extreme the La Niña, which is characterized by a cooling of waters in the tropical Pacific, generally the more pronounced the impacts can be. New r… Read More

Climate Change Moves the Doomsday Clock

Climate Change Moves the Doomsday Clock

The end of civilization as we know it just got a little closer. According to an update to the Doomsday Clock, the world is now three minutes from midnight and one of the big reasons is the failure to reduce greenhouse emissions even in the face of climate change. The Bulletin of the Atomic Scientists maintains the clock and resets the hands every … Read More

Watch 28 Years of Old Arctic Ice Disappear in One Minute

Watch 28 Years of Old Arctic Ice Disappear in One Minute

Arctic sea ice is pulling a Benjamin Button. It's been getting younger. But while that's a fate some would relish, it's not necessarily good news for ice as it's trip to the fountain of youth could speed its demise. The National Oceanic and Atmospheric Adminstration has released an animation showing the decline of old sea ice since 1987, the first… Read More

Five Graphics That Show 2014’s Record Heat

Five Graphics That Show 2014’s Record Heat

Unless you've been living under a climate rock, you've probably heard that 2014 was the warmest year on record. NASA and the National Oceanic and Atmospheric Administration released data on Friday confirming last year took the crown from 2010 by about 0.1°F and running 1.24°F above the long-term average. What does the hottest year on record look l… Read More

U.S. Hot Streak Now Old Enough to Vote

U.S. Hot Streak Now Old Enough to Vote

In a year bookended by bitter cold snaps east of the Mississippi, it might come as a surprise to some that 2014 was actually quite a bit warmer than average in the U.S., making it the 18th year in a row with above-normal temperatures. Less of a surprise was the economic impact of the drought in the West, now on the brink of its fourth year. The dro… Read More

Polar Vortex Isn’t the Only Weather Game in Town

Polar Vortex Isn’t the Only Weather Game in Town

This first week of January might be giving you a strong feeling of deja vu. No, not just because you’re back at the gym as part of your New Year’s resolution or have sworn off champagne. Icy temperatures have descended once again on the Midwest and East Coast, almost exactly a year after the first popular mention of the weather pattern that spawned… Read More

Hot, Unfriendly Skies Could Alter Flights

Hot, Unfriendly Skies Could Alter Flights

You know those tube socks your grandmother air mails you on your birthday every year? Well, they could become another casualty of global warming. Or at least arrive a few days late. Hot weather is likely to increase the number of days with weight restrictions on cargo planes and even airliners, delaying gifts, air travel and slicing into airlines’… Read More

One for the Record Books: 2014 Officially Hottest Year

One for the Record Books: 2014 Officially Hottest Year

It’s official: 2014 has taken the title of hottest year on record. That ranking comes courtesy of data released Monday by the Japanese Meteorological Agency (JMA), the first of four major global temperature recordkeepers to release their data for last year. The upward march of the world’s average temperature since 1891 is a trademark of human-influ… Read More

Climate Change’s Calling Card in 2014: Heat

Climate Change’s Calling Card in 2014: Heat

The lengthy streak of global warming and extreme heat continued in 2014 and it’s likely that the hits will just keep coming. This year is virtually guaranteed to go down as the world’s hottest year on record. But it’s not just one hot year we’re talking about. It’s a staggering list. Consider that the 15 hottest years on record have all come since … Read More

Seventeen U.S. Cities on Track for Hottest Year

Seventeen U.S. Cities on Track for Hottest Year

The globe is on track fo its warmest year on record. But global average temperature watchers won't be the only ones fêting record heat when the clock strikes midnight on Wednesday. A number of U.S. urban areas will also join in the 2014 warm record-setting festivities while not a single major urban area will be raising a glass to record cold. In fa… Read More

The Year’s 7 Most Telling Images From Space

The Year’s 7 Most Telling Images From Space

What’s better than a year-end list? A year-end list . . . from space. As of July this year, there are 1,235 satellites in operation by countries around the world tracking everything from carbon dioxide to the weather. Throw in the International Space Station and you’ve got one heck of an Earth-observing system circling this fair planet. The image… Read More

You Should Watch This Space Time-lapse Right Now

You Should Watch This Space Time-lapse Right Now

If you're a fan of epic ultra high definition time-lapse videos from space — and really who isn't — then you'll be happy to know that Christmas arrived early. The European Space Agency has stiched together more than five months of astronaut Alexander Gerst's time-lapse photography from the International Space Station and made it into a s… Read More

Tipping Point Nears for ‘Emerging Flooding Crisis’

Tipping Point Nears for ‘Emerging Flooding Crisis’

Soggy times are coming for cities along both U.S. coasts and they’ll be here much quicker than previously thought. By mid-century, sea level rise is set to make floods a monthly occurrence in more than two dozen cities, and in some of those cities, it could become a daily occurrence by the 2070s. The watery findings come from a new study published… Read More

NASA Satellite Sends Back Most Detailed View of CO2

NASA Satellite Sends Back Most Detailed View of CO2

It’s been a busy five months for NASA’s newest carbon dioxide-monitoring satellite, snapping up to 1 million measurements a day of how carbon dioxide moves across the planet. Now NASA scientists have shared the first global maps created using that data, showing one of the most detailed views of CO2 ever created. The satellite — known as OCO-2 — has… Read More

Persistent Warming Driving Big Arctic Changes

Persistent Warming Driving Big Arctic Changes

Not every year can be a record setter in the Arctic. But records are only one small piece of a larger puzzle that shows persistent change in the Arctic. And that change hasn’t slowed according to this year’s Arctic Report Card released at the American Geophysical Union’s Fall Meeting on Wednesday. Long-term trends in rising temperatures, spirali… Read More

Acidic Oceans Could Quiet Coral Reefs

Acidic Oceans Could Quiet Coral Reefs

Doug E. Fresh may have some competition in the beatboxing arena from unlikely source. It’s not from some underground phenom but rather an underwater rising star, or well, fish. Take a listen to this beat laid down by a croaker fish off the coast of Indonesia. A rhythmic thumping provides the beat for an otherwise ambient ocean noise track. “This o… Read More

Greenland’s Ice Sheet Shifts Could Speed Melt

Greenland’s Ice Sheet Shifts Could Speed Melt

New discoveries in Greenland’s warming ice sheet tell a chilling tale of change in its depths. Mysterious under-snow lakes pockmarking its edges and deep layers of ice at higher elevations both point to changes that could hasten melt and send water cascading into the ocean, pushing global sea levels ever higher. Researchers revealed findings of th… Read More

CO2 Takes Just 10 Years to Reach Planet’s Peak Heat

CO2 Takes Just 10 Years to Reach Planet’s Peak Heat

In a study that could have big ramifications on estimating the impacts, costs and benefits of reducing carbon dioxide emissions, new research shows that CO2 brings peak heat within a decade of being emitted, with the effects then lingering 100 years or more into the future. The research, published Wednesday in Geophysical Research Letters, provide… Read More

Atmospheric River, Heavy Rain Roar Into California

Atmospheric River, Heavy Rain Roar Into California

For the second time in a week, heavy rain is making an appearance in drought-weary California. This round comes courtesy of the tropics via an appropriately named “atmospheric river” that is sending precipitation across the state, bringing a modicum of relief. While the storm may marginally help the state-wide drought, relief could come at a high p… Read More

Earth, Now Available in Ultra High Definition

Earth, Now Available in Ultra High Definition

A year in weather in high definition was pretty amazing and so was a similar sharp take on the spring equinox. But a five day view of the planet from space in ultra high definition is a whole other level of awesome. The imagery from mid-May 2011 comes courtesy of Russia’s high flying Elektro-L weather satellite, which sits in high Earth orbit more … Read More

Climate Investments ‘Falling Short’ of 2°C Goal

Climate Investments ‘Falling Short’ of 2°C Goal

Staving off the worst impacts of climate change by investing in clean energy and smart climate adaptations makes economic sense, but a new report shows that investments are still lagging globally. At the same time, the dropping costs of clean energy, particularly solar, mean that companies are doing more with less. The annual Global Landscape of C… Read More

World Needs to Mind the Carbon Emissions Gap

World Needs to Mind the Carbon Emissions Gap

A new report suggests that policymakers better mind the gap if they want to meet the 2°C global warming threshold. But in spite of the warning, that chasm is growing as the world’s carbon dioxide emissions continue to rise. To bridge the gap, the world will have to reduce emissions to reach net carbon dioxide (CO2) neutrality sometime between 2055-… Read More