Humans appropriate about 40% of all terrestrial plant production for various purposes
Author: William Schlesinger
Geo-engineering II: The sea
if we added iron to a large area of the world’s oceans, we could dramatically lower the level of carbon dioxide in Earth’s atmosphere.
Disbeliefs
Those who enjoy understanding about science need to do more than bask in that pleasure.
Carbon Capture and Storage (CCS)
The CO2 storage capacity of areas favorable for CCS in the United States amounts to 150 x 1015 g of CO2—equivalent to about 25 years of our emissions at current levels.
Wildlife Refuges and Corridors
As a first approximation, a large protected area will preserve more species than a small one.
The Answer is Blowing in the Wind
All this argues for the electric utility companies to spend far less money planning natural-gas and nuclear-fired power plants and far more on wind mills and improvements to the grid
Phosphorus in Lake Erie
If we are to ensure high quality water, significant effort must be put to managing sources of nitrogen and phosphorus in runoff that reaches the Great Lakes
What’s New Down on the Farm
Agriculture activities are a significant contributor to human emissions of greenhouse gases. When new fields are opened for farming, cultivation often results in the loss of 40 to 60% of the organic matter from soils,Continue reading
Embodied Energy
Overall, embodied energy represents about a third of the energy used in modern society.
Waters of the United States
For the purposes of maintaining water quality in the Hudson River, it shouldn’t matter if I dump my sewage or industrial waste into a small tributary or directly into the River.