The mountain pine beetle (Dendroctonus ponderosae Hopkins, Coleoptera: Curculionidae, Scolytinae) is a native insect of the pine forests of western North America, and its populations periodically erupt into large-scale outbreaks. During outbreaks, the resulting widespread tree mortality reduces forest carbon uptake and increases future emissions from the decay of killed trees.

One of the most dramatic perturbations to the Earth system during the past 100 million years was the rapid onset of Antarctic glaciation near the Eocene/Oligocene epoch boundary (34 million years ago). This climate transition was accompanied3 by a deepening of the calcite compensation depth

The international team of climate change scientists that produced an influential series of reports last year will be doing things a little differently in the future. Government delegates to the Intergovernmental Panel on Climate Change (IPCC), meeting in Budapest, Hungary, approved a plan for the 20-year, 100-nation enterprise that would generate more precise and relevant information on climate change-without taking any longer than the current 6-year gap between reports.

Past atmospheric methane concentrations show strong fluctuations in parallel to rapid glacial climate changes in the Northern Hemisphere, superimposed on a glacial

When people talk about catastrophic climate change, there's a fair chance that Greenland is on their mind. If they use the term 'tipping point', then it is pretty much a sure thing. One-twentieth of the world's ice is locked up atop that island, and if it were to melt completely, global sea levels would rise by seven metres. The collapse of the Greenland ice sheet is in the front rank of potential climate catastrophes.

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.

Pages