Invading insects of the Southeast

Ecosystem Art

Larry Eifert has created a number of murals for National Parks:


John Dawson is famous for his ecosystem postage stamps:

Charley Harper creates iconic abstract animal and ecosystem images:

The Schmoo and Marxism

Canadian Tar Sands

While groping for words to describe mining tar sands in Alberta, Canada, I realized the only word I had was Hell. Humans are creating Hell. I don't know if that is a moralistic judgement or simply the most accurate description. I don't know how I feel about getting oil from the tar sands by strip mining the wilderness fens and forests, nor do I have a definitive "scientific" judgement of how bad for the environment this really is. I don't have a political opinion on the associated plans to haul 3-lane wide super-trucks across Lolo Pass and through Missoula, Montana; nor do I have a completely educated opinion of the necessity of building mega pipelines across the Oglalla Aquafer of Nebraska and through the primeival British Columbia "ghost bear" rainforest to transport the oil steamed out of the tar.

All I know is this:

BEFORE

AFTER

From National Geographic

Best comparison of world temperature trends

from: Wood for Trees

Timber Harvest Effect on Soil

The overall effect is a small loss in total soil carbon; both total carbon content and concentration decrease in the "forest floor," but not in the surface or deep mineral soils. 

Black dots are total carbon; white dots are carbon concentration.

The decrease in total forest floor carbon is greater in hardwood forests, although there is some evidence that it takes longer to rebound in conifer forests because of their lower litter production.

Citation:
Nave LE, Vance ED, Swanston CW, Curtis PS. Harvest impacts on soil carbon storage in temperate forests. Forest Ecology and Management. 2010;259(5):857–866.