IISS: “A Global Catastrophe” For International Security
A recent study done by the International Institute for Strategic Studies has likened the international security effects of global warming to those caused by nuclear war. [On Deadline]

U.N.: As Dangerous As War
United Nations Secretary General Ban Ki-moon said this year that global warming poses as much of a threat to the world as war. [BBC]

Center for Naval Analyses: National Security Threat
In April, a report completed by the Center for Naval Analyses predicted that global warming would cause “large-scale migrations, increased border tensions, the spread of disease and conflicts over food and water.” [Seattle Post-Intelligencer]

Genocide in Sudan
UN Secretary General Ban Ki-moon charges, “Amid the diverse social and political causes, the Darfur conflict began as an ecological crisis, arising at least in part from climate change.” [Washington Post]

War in Somalia
In April, a group of 11 former U.S. military leaders released a report charging that the war in Somalia during the 1990s stemmed in part from national resource shortages caused by global warming. [Washington Post] 

Starvation
A study by IISS found that reduced water supplies and hotter temperatures mean “65 countries were likely to lose over 15 percent of their agricultural output by 2100.” [Yahoo]

Large-Scale Migrations
Global warming will turn already-dry environments into deserts, causing the people who live there to migrate in massive numbers to more livable places. [MSNBC] 

More Refugees
A study by the relief group Christian Aid estimates the number of refugees around the world will top a billion by 2050, thanks in large part to global warming. [Telegraph] 

Increased Border Tensions
A report called “National Security and the Threat of Climate Change,” written by a group of retired generals and admirals, specifically linked global warming to increased border tensions. “If, as some project, sea levels rise, human migrations may occur, likely both within and across borders.” [NY Times]

Famine
“Developing countries, many with average temperatures that are already near or above crop tolerance levels, are predicted to suffer an average 10 to 25 percent decline in agricultural productivity by the 2080s.” [Economic Times] 

Droughts
Global warming will cause longer, more devastating droughts, thus exacerbating the fight over the world’s water. [Washington Post] 

The Poor Are Most at Risk
Although they produce low amounts of greenhouse gases, experts say under-developed countries—such as those in sub-Saharan Africa—have “the most to lose under dire predictions of wrenching change in weather patterns.” [Washington Post]

Your Checkbook
A report done last year by the British government showed global warming could cause a Global Great Depression, costing the world up to 20 percent of its annual Global Domestic Product. [Washington Post]

The World’s Checkbook
A study by the Global Development and Environment Institute at Tufts University found that ignoring global warming would end up costing $20 trillion by 2100. [Tufts]