Bertrand Piccard, welcoming Solar Impulse 2.

This Solar-Powered Plane FINALLY Made It Around The World

Solar Impulse's voyage started in March 2015, and just over a year later, the plane landed back where it first took off in Abu Dhabi.

  Climate Change

1:07A NASA diagram of the hole in the ozone layer.
NASA / CC by 2.0

Chill Out, The Hole In The Ozone Layer Is Actually Shrinking

1:17Smoke and steam rise from a power plant.

23 States Sue The EPA Over A CO2 Emissions Regulation

1:28Stephen Hawking speaks in New York City in April 2016.
Getty Images / Bryan Bedder

What Stephen Hawking Doesn't Know, And What He Knows All Too Well

1:06Firefighters monitor a California wildfire in 2015.
Getty Images / Justin Sullivan

If It Feels Like Wildfires Are Getting Bigger, It's Because They Are

0:56President Barack Obama meets with India's Prime Minister Narendra Modi in the White House
Getty Images / Dennis Brack

India Joining Paris Climate Agreement Could Stop It From Falling Apart

1:04The sun rises behind the skyline as temperatures hovered around -10 degrees January 28, 2014 in Chicago, Illinois.
Getty Images / Scott Olson

Buildings Produce A Lot Of Carbon Dioxide — But They Don't Have To

1:22An octopus.
Snailgenie / CC BY 2.0

Climate Change Might Be Helping Octopuses

:53A section of Lake Oroville was nearly dry on August 19, 2014 in Oroville, California
Getty Images / Justin Sullivan

NASA Data Shows Last Month Was The Hottest April On Record

1:10Commuters board a Metrorail train at Union Station, March 15, 2016 in Washington, D.C.
Mark Wilson / Getty Images

Building Cities Around Public Transit Could Change Urban Life

1:06Cut steaks are seen at Wilson's Blue Ribbon Meats in Fairless Hills, Pennsylvania.
Getty Images / William Thomas Cain

Denmark Might Tax Beef To Fight Climate Change

1:56Pedestrians cross the street at a busy intersection on the West Side of Manhattan on September 29, 2014 in New York City.
Getty Images / Spencer Platt

City Streets Can Do More To Fight Climate Change

1:04U.S. Secretary of State John Kerry speaks at the signing of the Paris Agreement.
Getty Images / Spencer Platt

United Nations Sets Record As 175 Countries Sign Paris Agreement

1:03Staghorn coral is in sharp decline thanks to increasing ocean temperatures and acidification.
XL Catlin Seaview Survey

We're Killing Coral Reefs Faster Than Ever

1:37Picture of Bill Nye next to a picture of Sarah Palin
Getty Images

Bill Nye Is A Real Science Guy; Read His Resume, Sarah Palin

1:07An image showing record low sea-ice level maximums in 2016.

The North Pole Is Moving Toward The UK; Is Climate Change To Blame?

1:08Melting ice from Antarctica contributes to sea level rise

Sea Levels Could Rise Twice As Fast By The End Of The Century

:58A person drinks a glass of wine.
Getty Images / Justin Sullivan

Why Climate Change Means Better French Wine ... At Least For Now

1:58Republican presidential candidate U.S. Sen. Marco Rubio (R-FL) speaks during a campaign rally in Tampa, Florida.
Getty Images / Joe Raedle

Florida Faces A Big Climate Threat, But Most Candidates Won't Say That

1:31Political back-and-forth over the Clean Power Plan could resonate for millennia.
Newsy / Evan Thomas

The Really (Really) Long-Term Climate Implications Of 2016's Elections

1:08Adélie penguins in Antartica.
Eli Duke / CC BY 2.0

Giant Iceberg Traps Penguin Colony, Killing 150,000 Birds

1:19small pool of water is surrounded by dried and cracked earth that was the bottom of the Almaden Reservoir on January 28, 2014 in San Jose, California.
Getty Images / Justin Sullivan

Study Says Droughts In The Southwest Could Become More Frequent

1:41A coniferous forest is shown on a mountainside.
Giorgio Galeotti / CC BY 2.0

Some Trees Might Slow Climate Change Better Than Others

Getty Images / Dan Kitwood

New Report Says 2016 Is 'Very Likely' To Be The Warmest Year On Record

Getty Images / Pascal Le Segretain

'Father Of Climate Change Awareness' Doubts COP 21 Will Curb Emissions

Getty Images / Andrew Burton

Why You're Not Shopping In A Winter Wonderland This Year

Newsy / Evan Thomas

The Promising Language Of The Paris Climate Agreement

Getty Images / Carsten Koall

COP21 Summit Unveils Final Draft Of Climate Deal

Benjamin Géminel

What Happens If Paris Climate Talks Fail?

Getty Images / Feng Li

Global CO2 Emissions Dropped In 2015, Report Says

Getty Images / Kevin Frayer

Pollution Canceled Recess In Beijing