Recent Accomplishments in Global
Change Process Research
- Experimental research on the uptake of carbon by mid-latitude
forests suggests that these forests may be a greater sink for carbon
than previously thought.
- The residence time of methane in the atmosphere has been found
to be significantly larger than previous estimates. Recognition of the
role of methane as an important greenhouse gas has been
- Research on the radiative effects of sulfate particles, formed in the
lower atmosphere from emissions of sulfur dioxide, could be at least
temporarily counterbalancing warming due to increasing
concentrations of greenhouse gases.
- Studies on past climate from ice core data continue to indicate that
abrupt climatic shifts occurred frequently in these regions over time
scales on the order of decades or less over the last few million years.