The world has entered a “new danger zone” with levels of Earth-warming carbon dioxide in the atmosphere never experienced by humankind, the United Nations (U.N.) climate chief warned on Monday.

Over 10 billion gallons of raw and partly treated sewage gushed into waterways and bubbled up onto streets and into homes as a result of Hurricane Sandy — enough to cover Central Park in a 41-foot-

Industrialized nations' greenhouse gas emissions dipped 0.7 percent in 2011, helped by a U.S.

Bangladesh can slash greenhouse gas emissions by around 22 per cent by 2020 through introducing a variety of clean technologies that would cost less than $10 per tonne of carbon-dioxide equivalent,

Summer ice in the Antarctic is melting 10 times quicker than it was 600 years ago, with the most rapid melt occurring in the last 50 years, a joint Australian-British study showed Monday.

Says these cities are very vulnerable to the impacts of climate change due to sea level rise and coastal flooding

Rising sea levels due to climate change are threatening the survival of big cities located near coastal areas like Kolkata, Shanghai and Dhaka, said Dr R K Pachauri, chairperson of the Intergovernmental Panel on Climate Change (IPCC). "There is a very high risk in delta cities like Kolkata, Shanghai and Dhaka. They are very vulnerable to the impacts of climate change due to sea level rise and coastal flooding. Both people and property would be affected in such a scenario," Pachauri told reporters here.

Research finds acceptance of need to plan for climate change but an unwillingness to pay for it with projects like sea walls

One of the nation's more controversial climate-change skeptics dismissed warnings about sea-level rise and global warming as "scare tactics" and "sick" science in a talk here.

The signs of rising water are everywhere in this seaport city: yellow "Streets May Flood" notices are common at highway underpasses, in low-lying neighborhoods and along the sprawling waterfront.