Climate Change

formerly “Climate Science” this has been updated in recognition of the fact that ALL of our articles, events, etc. involve climate sciience.  ”Climate change” is intended to suggest changing elements of the climate: e.g., shifts in global oceanic and atmospheric circulation and ensuing changes to temperature, precipitation, groundwater levels, saltwater intrusion.

Climate-Ecosystem Carbon Feedbacks

Respiration by plants and microorganisms is primarily responsible for mediating carbon exchanges between the biosphere and atmosphere. Climate warming has the potential to influence the activity of these organisms, altering the exchanges between carbon pools. Traditionally, the respiratory release of CO2 into the atmosphere is thought to be more temperature-sensitive than photosynthesis (carbon fixation), generating a positive climate-ecosystem carbon feedback with the potential to accelerate climate warming by up to 1.4 times.

Mapping Biodiversity Remotely

Biodiversity is an extremely important component of the Earth System that is both difficult to quantify and vital to understand. In a recent special issue of Remote Sensing, several articles describe the progress we have made in quantifying various aspects of biodiversity using novel imaging technologies. Not long ago the prospect of identifying species from space was considered extremely unlikely, but in the editorial titled “Biological Diversity Mapping Comes of Age,” Dr.

Unusual Southern Hemisphere Tree Growth Induced by Ozone Depletion

Earth’s climate system includes several patterns of climate variability at the hemispheric scale. One of the best known of these is the El-Nino/Southern Oscillation, which influences weather across much of the globe. Another important feature of the climate system is the Southern Annular Mode (also known as the Antarctic Ocean Oscillation), which is an index of the pressure gradient between the mid- and high-latitudes in the Southern Hemisphere. Over the last few decades, the dominance of the positive phase of the Southern Annular Mode has been increasing.

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