For example, the growth of corn-ethanol biofuel has been shown to raise food prices ... which in some places forces poor farmers cut down more forest ... which releases more greenhouse CO2 into the air (about 20 percent of mankind's annual carbon emissions are believed to come from deforestation) ... which increases the atmosphere's greenhouse gases that are warming the Earth and helping melt Arctic and sub-Arctic permafrost ... which in turn releases even more of the vast natural stores of greenhouse gases methane and CO2 they have been able to hold on to as long as the earth's temperature remained relatively low.
These complex and mutually supporting feedback loops, say analysts, also include many human activities.
For example, as more greenhouse gas enters the atmosphere, heat spikes and dangerous heat waves become more frequent, requiring more air-conditioning (where available) which in turn draws on more electricity ... which is oftern provided by power plants that will now be required to burn more coal, the biggest single source of fossil fuel CO2 emissions.
In other words, global warming ... is global.
Tom Casten -- CEO of Recycled Energy Development, a company that helps power plants produce far more energy for unit of coal burned, observed as the Aspen conference drew to a close that "The fundamental message of all the people here is the interconnectedness of the environment."
The world's nation's are slated to meet in Copenhagen in December to try to agree on how to slash greenhouse emissions worldwide.
That, and a growing number of reports from scientists around the world that global warming is now advancing faster than expected only a couple of years ago, mean that pressure is intense on the experts to connect all the dots in time to control it.