More than 70 international climate scientists met in Kathmandu earlier this month to begin the tricky scientific

World Sea Levels To Rise 1.5m By 2100

Two years ago, Eduardo Ferreira was studying the microbiology of cancer cells in S

US scientists have unveiled a new, high-resolution interactive map which tracks patterns of CO2 emissions coming from fossil fuels burned daily across the country. The maps and system, called Vulcan, show CO2 emissions in more than 100 times greater detail than was previously available. Until now, scientists say, data on carbon dioxide emissions was reported monthly at a statewide level.

Scientists at two UK universities have produced evidence to debunk a popular alternative theory to explain climate change. The scientists were unable to find a link between cosmic rays and cloud cover Following a year long study, emeritus professors Terry Sloan, of Lancaster University, and Arnold Wolfendale, of Durham University, said they could find no link between cosmic rays and global warming.

Can Australia lead the world in carbon capture technology? The influential climate scientist James Hansen hopes so. In an open letter published last week, he asked Australian prime minister Kevin Rudd not to build any new coal-fired power plants until the technology to capture and store carbon dioxide is ready.

This month, NASA begins the most extensive field campaign ever to investigate the chemistry of the Arctic's lower atmosphere. The mission is poised to help scientists identify how air pollution contributes to climate changes in the Arctic. The recent decline of sea ice is one indication the Arctic is undergoing significant environmental changes related to climate warming. NASA and its partners plan to investigate the atmosphere's role in this climate-sensitive region with the Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) field campaign.

A potential new weapon in the battle against global warming - to remove carbon from the atmosphere by locking it up permanently in soil minerals - is being developed at Newcastle University in the UK. When plants absorb carbon dioxide from the atmosphere during photosynthesis, they use some of the carbon to grow. But most is pumped through the roots into the earth around them and then escapes back into the atmosphere or groundwater.

New research has dealt a blow to the skeptics who argue that climate change is all due to cosmic rays rather than to man-made greenhouse gases. The new evidence shows no reliable connection between the cosmic ray intensity and cloud cover. Lauded and criticised for offering a possible way out of the dangers of man made climate change, UK TV Channel 4's programme "The Great Global Warming Swindle", broadcast in 2007, suggested that global warming is due to a decrease in cosmic rays over the last hundred years.

This report presents a wide-ranging review of arctic climate impact science. It spans the width of subject areas, covering impacts on physical and biological systems, as well as on humanity. The report presents the scientific evidence for arctic climate change impacts in review sections, each of which targets a particular arctic system or cross-cutting arctic theme.