New results show that the response of marine organisms to ocean acidification varies both within and between species.

The Asian tiger mosquito is on a rampage. Entomologists are impressed, public health officials are nervous, and many of the rest of us are swatting furiously. How did Aedes albopictus become such a scourge?

Increasing quantities of atmospheric anthropogenic fixed nitrogen entering the open ocean could account for up to about a third of the ocean's external (nonrecycled) nitrogen supply and up to ~3% of the annual new marine biological production, ~0.3 petagram of carbon per year. This input could account for the production of up to ~1.6 teragrams of nitrous oxide (N2O) per year.

Rapid climate change has been implicated as a cause of evolution in poorly adapted populations. However, phenotypic plasticity provides the potential for organisms to respond rapidly and effectively to environmental change.

It has been widely hypothesized that a warmer climate in Greenland would increase the volume of lubricating surface meltwater reaching the ice-bedrock interface, accelerating ice flow and increasing mass loss. We have assembled a data set that provides a synoptic-scale view, spanning ice-sheet to outlet-glacier flow, with which to evaluate this hypothesis.

A continuous lake record elucidates how Saharan climate changed gradually from humid to today's desert conditions.

Researchers in the emerging field of wildlife reintroduction battle hawks, habitat loss, and poachers to give animals a second chance.

Officials in southern China's Guizhou Province are hoping to head off future attempts at "biopiracy"--the plunder of natural resources--by enshrining the protection of indigenous knowledge into law.

Desiccation of the Sahara since the middle Holocene has eradicated all but a few natural archives recording its transition from a "green Sahara" to the present hyperarid desert.

Boreal forests serve as important global sources or sinks of carbon (C) and wildfire is a major driver of C storage in these forests. Although fire releases CO2 to the atmosphere, it also converts plant biomass into forms of black carbon, such as charcoal, that are resistant to microbial attack and persist in the soil for thousands of years. It has frequently been suggested that, because of its resistance, black C can serve as an important long-term C sink that may help offset the release of human-induced CO2 to the atmosphere.