Citizen Scientist                                   in cooperation with   

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.

Read More

Disbeliefs

Those who enjoy understanding about science need to do more than bask in that pleasure.

Read More

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.

Read More

Wildlife Refuges and Corridors

As a first approximation, a large protected area will preserve more species than a small one.

Read More

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

Read More

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

Read More

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, lowering their fertility and releasing carbon dioxide to the atmosphere.  Among other greenhouse gases, the largest human emissions of methane stem from grazing cattle and the cultivation of rice. Similarly the largest human emissions of nitrous oxide (N2O) are associated with the microbial processing of nitrogen fertilizers and manure applied to agricultural soils. We ask agriculture to feed a global population of more than 7 […]

Read More

©2015 Nicholas School of the Environment at Duke University | Box 90328 | Durham, NC 27708
how to contact us > | login to the site > | site disclaimers >

footer nav stuff