Friday, 25 May, 2012

Salvage logging of forests after natural disturbances is a bad idea, ecologists warn. Evidence from a forest whacked by a 1938 hurricane show how salvage logging changes the landscape.

What did the losing World Trade designs look like? What is the significance of a city skyline?

If we put up a giant umbrella to shield the Earth from global warming, what will happen to plant productivity?

What was the long-term impact of the Exxon Valdez spill in Alaska? Did the cleanup help, or make matters worse? Who are you going to believe in a case like this?

Protecting small fish may cause a genetic change that promotes slow-growing fish. Is it smarter to protect the large fish instead?

Alien earthworms are killing trees in northern deciduous forests. Are fishing people to blame?

Wildfires can be helpful. Controlled burns are key to restoring habitat for the Northern Idaho ground squirrel.

Study finds that many fish are getting more common; blames state fish-stocking efforts for the homogenization.

Stray light interferes with the work of astronomers — and it’s a waste of energy. How to stop light pollution.

World population has reached 6 billion. What does this mean for the environment, resources, humanity? Six billion people on Earth — is that a good thing?