Melting Greenland glacier water forms a "slow wave" that stays in the Atlantic for at least 50 years before reaching the Pacific, according to a new study. The water piles up in the Atlantic. "It is often assumed that sea levels will rise instantaneously, but that is unlikely, given what we know about ocean dynamics." Fifty years after the meltwater is released from Greenland, sea-level rise could be 30 times greater around Greenland and down the eastern side of North America, including the Gulf of Mexico, than in the Pacific Ocean. Sea-level rises in Europe are around six times that of the Pacific, but only a fifth as great as on the opposite shore of the Atlantic.
posted on Jul 8, 2008 - View this thread

In Lester R. Brown's new book Plan B 3.0: Mobilizing to Save Civilization (2008, full-text)) - an update to Plan B 2.0: Rescuing a Planet Under Stress and a Civilization in Trouble (2006, full-text) - he calls for a war-time mobilization (ch.13) to save global civilization (already showing Early Signs of Decline (ch.6)) from Deteriorating Oil and Food Security (ch.2), Rising Temperatures and Rising Seas (ch.3), Emerging Water Shortages (ch.4), and Natural Systems Under Stress (ch.5)
posted on Jul 2, 2008 - View this thread

Abrupt climate change is popularly thought of in the movies. But new Greenland ice core findings show two huge Northern Hemisphere temperature spikes occured prior to the close of the last ice age some 11,500 years ago, with a 22-degree-Fahrenheit spike in just 50 years. These followed a massive "reorganization" of atmospheric circulation taking just one or two years. "We know such events are in Earth's future, but we don't know when .. we are speeding blindly down a narrow road, hoping there are no curves ahead."
posted on Jun 20, 2008 - View this thread

Earth2100.tv is a project by ABC (video preview) to solicit ideas from the public and experts about the dangers facing world in the next 100 years. "The world’s brightest minds agree that the “perfect storm” of population growth, resource depletion and climate change could converge with catastrophic results. We need you to bring this story to life."
posted on Jun 13, 2008 - View this thread

Sucking CO2 out of the air has long been a holy grail for solving global warming; Richard Branson has promised $25m to anyone who succeeds. Of course it's already been done, but the amount of energy required doesn't make it net carbon positive. Now a team in Arizona, led by Klaus Lacknet under the company of Global Research Technologies, says it has made a significant breakthrough that massively reduces the amount of energy required - the "project has reached the stage where it is quite clear we can do it." The planned prototype, which will be finished in two years, will cost $200,000 USD, be smaller than a shipping container and be capable of eliminating around 1 ton of CO2. Even if it works many hurdles remain but it portends a cooler future for air-capture technology.
posted on Jun 9, 2008 - View this thread

Why bother? "That really is the big question facing us as individuals hoping to do something about climate change," by Michael Pollan.
posted on Apr 19, 2008 - View this thread

2007 was a year of extreme weather records, and 2008 could be worse, for example an unrelenting southeast drought could be devastating. 2008 will also be Bush's last year, and as the evidence for global warming mounts, Bush's agenda appears to be greening. "If global warming turns out to be a defining issue of this generation, advisers said, Bush does not want to be remembered as a roadblock."
posted on Dec 29, 2007 - View this thread

The historically significant^* "4th IPCC report on global warming" was published in full last weekend to wide publicity. Part 1 "The Science". Part 2 "The Impacts" and Part 3 "The Solutions" - each about a 1000 page 6 pound brick, but summaries make it accessible. Beyond its gloomy dire warnings and calls for immediate action, observed global measurements of CO2 levels are already worse than the worse case scenarios and some say the report is overly conservative and already outdated. However there is a surprising idea for "solving" climate change (TED) that may be inevitable.
posted on Nov 21, 2007 - View this thread

The Green vs. the Brown Amazon. The future Amazon rain forest.
posted on Nov 15, 2007 - View this thread

CARMA, released today, is a map/database that shows the carbon emissions of more than 50,000 power plants and 4,000 power companies in every country on Earth, showing not only the worst but the best. Find out how much CO2 comes from electricity plants in a particular city, county, congressional district, company, town, ZIP code, or an individual plant.
posted on Nov 14, 2007 - View this thread

Warming Climate Fuels Mega-Fires (11-minute video) 60-Minutes reports. "Recently there has been an enormous change in Western fires. In truth, we've never seen anything like them in recorded history. It appears we're living in a new age of mega-fires -- forest infernos ten times bigger than the fires we're used to seeing."
posted on Oct 23, 2007 - View this thread

A record number of floods, droughts and storms around the world has been characterized as a climate change "mega disaster" by a senior UN official, a measure based on 13 emergency "flash" appeals (PDF, map) issued so far this year (pic gallery) - three more than in 2005 which held the previous record. Sir John has expressed frustration at how little media attention in the west is being devoted to what he terms a global "creeping climatic catastrophe".
posted on Oct 6, 2007 - View this thread

The Catholic Church is traditionally not seen as a progressive institution, but when it comes to global warming, Vatican City is aiming to become the worlds first fully carbon-neutral state, and the Pope is expected to use his first address to the United Nations next April to deliver a powerful warning over climate change in a move to adopt protection of the environment as a "moral" cause for the Catholic Church and its billion-strong following.
posted on Sep 22, 2007 - View this thread

HighWater Line is a public art installation in New York City that will be a 70-mile chalk line marking the boundary of a 10-foot sea level rise. More pictures under Timeline.
posted on Aug 4, 2007 - View this thread

The great Caribbean coral die-off. "The 2005 die-off is bigger than all the previous 20 years combined".. magnitude never before-seen.. sea surface temps worst in the 21 years of satellite monitoring. NOAA preliminary reports with cool graphs to left.
posted on Mar 31, 2006 - View this thread

RealClimate is a blog written by nine working climatologists from around the world (all experts in their field), focusing on explaining climate science, providing context to current reports in the mainstream media, and rebutting the fallacious arguments of carbon lobby hacks. (via World Changing)
posted on Dec 10, 2004 - View this thread

The earths 12 "tipping points" where small increases in average temperature due to global warming could produce "sudden and dramatic environmental damage." The canary in a coal mine to keep an eye on. More papers by the Tyndall Center. (via).
posted on Oct 14, 2004 - View this thread

The warm water ocean currents of the Gulf Stream are why London rarely gets snow yet Boston is fridged despite London being as far north as Montreal, Canada. New weather modeling research from Columbia University may turn this long-held belief on its head; London can thank the Rocky Mountains for its mild winters. Good news for the rest of Europe too in case the Gulf Stream stops due to Arctic melting.
posted on Jan 30, 2003 - View this thread