Ecoclimax

Time history of atmospheric carbon dioxide from 800,000 years before present until January, 2009.

CO2 is a naturally occurring compound, that plays a profound and vital role in a myriad of natural processes.How could more of it be bad?

From a harsh, uncompromising land comes a story of hope...

The government spends billions of dollars to support the energy industry, which allows it to make energy cheaper than it should cost on the open market. These subsides - either in the form of tax breks or direct funding - favor some types of energy over others, giving our country a skewed sense of what each gallon of gas or wind-powered electron costs. This is a look at where the government directed its subsidy dollars from 2002 to 2008.

The Harland Family who founded Permaculture Magazine and permaculture publishing house, Permanent Publications, return to BBC2 with Alan Titchmarsh to explain how they have designed and planted a permaculture garden that is both a wildlife sanctuary and an abundant forest garden.

How Much Energy - Wether Electric, Coal, Nuclear, Or Otherwise - Is Requered For A 100-Watt Lightbulb To Run For A Year, 24 Hours A Day?

The WWF format is a PDF that cannot be printed out. It's a simple way to avoid unnecessary printing. So here's your chance to save trees and help the environment. Decide for yourself which documents don't need printing out -- then simply save them as WWF.

Plants, animals, even entire ecosystems are disappearing from the Earth. So what? In "What Is Nature Worth?", the University of Minnesota's Institute on the Environment offers a three-minute look at what biodiversity loss is really costing us -- and what we can do about it.

Small coffee producers in Colombia are already feeling the effects of climate change on this vital, high-value cash crop. At higher elevations in the southwestern Cauca department, production is still profitable, but as you move downhill you see the effect of what a two-degree temperature rise - projected for 2050 - could mean for the future of coffee production: devastated crops, and coffee farmers who have abandoned their coffee plants and been forced to move into less profitable crops. The farmers featured here, in Two Degrees Up: COLOMBIA, provide precisely the kind of testimonies that will help policymakers meeting in Cancun, Mexico for the COP16 Climate Change talks, need to hear.

Bonnie Bassler discovered that bacteria "talk" to each other, using a chemical language that lets them coordinate defense and mount attacks. The find has stunning implications for medicine, industry -- and our understanding of ourselves.

Russian scientists travel to Siberia to measure output of methane from permafrost lakes.

earn about the impacts of our changing climate, and how groups are working to cope with them.