Environmental

Recent Posts

Unique Marine Ecosystems Indicate How Ocean Acidification Will Affect Sea Life
Posted on 27 May 2012 by Thomas H. Clarke, Jr.

A number of adverse environmental impacts are projected to occur from global warming. Although several atmospherically located substances will drive temperature increases, significant levels of CO2 may acidify the oceans. Ocean acidification is the name... Read More

Could the Amazon Become a Greenhouse Gas (GHG) Emitter Rather Than a Sink?
Posted on 3 Apr 2012 by Thomas H. Clarke, Jr.

The Amazon has long been conceived of as a CO2 sink because of its mass of vegetation. Researchers are now concerned that drought and deforestation may make it a net emitter. Because of regular measurements of about 100,000 trees, researchers estimate... Read More

Unique Marine Ecosystems Indicate How Ocean Acidification Will Affect Sea Life
Posted on 27 May 2012 by Thomas H. Clarke, Jr.

A number of adverse environmental impacts are projected to occur from global warming. Although several atmospherically located substances will drive temperature increases, significant levels of CO2 may acidify the oceans. Ocean acidification is the name... Read More

Early European explorers of North America may have indirectly triggered the Little Ice Age by exposing the local population to new diseases
Posted on 17 Oct 2011 by Thomas H. Clarke, Jr.

By the end of the 15th century, between 40 and 80 million people are thought to have been living in the Americas. Many of them burned trees to make room for crops, leaving behind charcoal deposits that have been found in the soils of Mexico, Nicaragua... Read More

An entirely new carbon sink in the oceans may have been discovered
Posted on 30 Nov 2010 by Thomas H. Clarke, Jr.

One of the themes that has run through prior posts is to note that our understanding of the carbon cycle may leave more than a little to be desired. Such lack of understanding may explain why the impacts of global warming are, in some cases, more severe... Read More

How does one assess the amount of carbon stored in a forest? Lidar
Posted on 26 Jun 2011 by Thomas H. Clarke, Jr.

Calibrating measurements from study teams on the ground with the results of a readouts from "light detection and ranging" instrumentation (LIDAR), Arbonaut, a Finnish natural resources management firm, has created the technology to product 3... Read More

Human impacts on the climate preceded the dawn of the petroleum age
Posted on 26 Jun 2011 by Thomas H. Clarke, Jr.

Prior posts, occasionally with tongue planted firmly in cheek, have noted that human impact on carbon loading in the atmosphere goes back to well before the industrial era. A recent assessment has calculated that over the eight millennia before 1850... Read More