carbon dioxide

President Donald Trump said the United States "will continue to be the cleanest and most environmentally friendly country on Earth." By some measures, it's the dirtiest.

U.S. allies around the world sounded alarms on Wednesday, May 31, 2017, as President Donald Trump seemed close to pulling the United States out of the landmark Paris climate accord.

UN Secretary-General Antonio Guterres made an impassioned appeal on May 30, 2017 for the world to intensify action to combat climate change and implement the Paris Agreement to limit carbon emissions.

Deep in the jagged red mountains of Oman, geologists are drilling in search of the holy grail of reversing climate change: an efficient and cheap way to remove carbon dioxide from the air and oceans.

Scientists have found the world's first large-scale area of acidified water in the open ocean in the seas of the western Arctic.

What if carbon dioxide emissions could be transformed from a liability into an asset?

The documents, a collection of archived internal corporate reports donated to the Calgary museum, contradict what the company, Imperial Oil, had been telling the public for years about climate change.

Two American congressmen have urged FBI to investigate

University of Calgary researchers focused on nanotechnology say they have developed a cheaper and more environmentally friendly way to create liquefied natural gas.