In a research by paleoceanographer Andre Bornemann of Leipzig University in Germany and his colleagues analyzed apparently unaltered Foraminifera picked from sediment core drilled from Demerara Rise beneath the western equatorial Atlantic. Following a classic technique, the researchers measured oxygen isotopes in the forams' shells. They found a sharp shift toward the heavier oxygen-18 isotope in both surface and bottom dwelling forams from 91.2 million years ago.

Last year, climate change scientists thought they had driven a silver stake through the idea that fluctuations in solar activity were behind global warming in the last century. Now, a high-profile team led by geophysicist Vincent Courtillot, director of the Institut de Physique du Globe in Paris, has sought to raise the dead in a paper linking changes in Earth's magnetic field to temperature variations in recent millennia.

Reviewing the Stern Report (Stern, 2006), Martin Weitzman notes

there has been a 35 per cent increase in carbon dioxide emissions worldwide since 1990. Inefficient fossil fuels have contributed to a 17 per cent increase in carbon dioxide emissions and an 18 per

climate change is the biggest story of the 21st century. But its sheer complexity is defeating us. For the past 16 years

Climate is reaching its

Companies and countries are planning a series of controversial experiments to help determine if seeding the ocean with iron can mitigate global warming.

Future international scientific climate change assessments should be faster, more integrated, and more directly linked to policy questions.

British explorer and environmentalist Pen Hadow and two colleagues are at the North Pole measuring the depth of ice. Equipment from Vanco, a virtual network operator, was used to transmit videos

Today the west knows that it has to take action on climate change, thanks to the Intergovernmental Panel on Climate Change (ipcc) and the Stern report. However, encouraged by the Stern report, it