Astrobiologists have released a report outlining a number of speculative scenarios where Extraterrestrials might contact Earth, including the possibility that they may detect our global warming problems and view as us a potential resource threat.

The first study to link global climate patterns to the onset of civil conflict places El Niño on a par with factors like poverty and social exclusion.

Extreme rainstorms and snowfalls have grown substantially stronger, two studies suggest, with scientists for the first time finding the telltale fingerprints of man-made global warming on downpours that often cause deadly flooding.

In the next decade, the effects of a rapidly warming climate could kill 5 million people—as many as live in Singapore or Finland. More than 99 percent of those deaths will likely occur in developing countries, and almost four-fifths are expected to happen in South Asia and sub-Saharan Africa. There could be as many as a million climate-related deaths each year by 2030 if nations don't significantly cut planet-warming emissions, according to a report released Friday.

An in-depth analysis of ten climate indicators all point to a marked warming over the past three decades, with the most recent decade being the hottest on record, according to the latest of the U.S. National Atmospheric and Oceanic Administration's annual "State of the Climate" reports, which was released Wednesday. Reliable global climate record-keeping began in the 1880s.

The United States is in danger of losing its ability to monitor key climate variables from satellites, according to a new Government Accountability Office report.

Greenhouse gas levels currently expected by mid-century will produce devastating long-term droughts and a sea-level rise that will persist for 1,000 years regardless of how well the world curbs future emissions of carbon dioxide, an international team of scientists reported yesterday.

NASA could be one of the nation's most potent weapons in battling climate change. The space agency has conducted decades of research into weather, life-support systems and the atmospheres of other planets providing it with unique skills to address this problem.

New research indicates that freshwater from melting icebergs may have led to the collapse of the North Atlantic Current and caused previous periods of abrupt global warming.

Research on Arctic and North Atlantic ecosystems shows the recent warming trend counts as the most dramatic climate change since the onset of human civilization 5,000 years ago.