Methane, a greenhouse gas 20 times more powerful than carbon dioxide, has been found by scientists in deadly, bubbling plumes on the surface of the Arctic Ocean.
2011 is, so far, the world's tenth warmest year on record, despite the warming being masked by cooling La Nina conditions.
The proposal for a 191 mile segment of highway that would pass through Bolivia's TIPNIS natural reserve and indigenous property is drawing strong protests and heated debate.
Shenyang, China - population 8 million - was once heavily polluted by blankets of soot and smog. Now, it is transforming itself into a growing center for green technology.
On September 12, an explosion at Marcoule, a nuclear facility in southern France, killed one person and injured four.
As global warming threatens the wellbeing of Alaskan walruses, the government has exacerbated the issue.
Expected rains have failed to arrive for successive seasons in and around Somalia, Ethiopia and Kenya, causing severe shortages of food and water for millions of people.
Analysts of the West Papua conflict have observed an escalation in violent incidents through the year, with a pronounced uptick since May. Journalists and members of the West Papua community themselves have previously warned that the situation is deteriorating.
This story isn't about the community activist victims suspiciously killed in Cabañas, El Salvador, in the last two years.
The project would cut diagonally through sensitive mountain forest regions, the largest on the island, home to much of Puerto Rico's biodiversity.