Snopes devotes scholarly diligence to rumours, photos-gone-viral, and other statements that often pass for fact in popular culture
FactCheck applies the Snopes model strictly to politics
FlackCheck describes common rhetorical tricks and posts videos of politicians and media personalities using them to make their positions look better and their opponents look worse
Population Clock gives real-time estimates of U.S. and world population, with further information on age, gender, region, and density
Worldometers gives population data as wall as figures on spending, health, food, energy, and environment
C02Now.org gives the latest C02 level in atmosphere
Inside Climate News A Pulitzer Prize-winning, non-profit, non-partisan news organization dedicated to covering climate change, energy and the environment
Worldwatch Institute A Vision for a Sustainable World
Food and Water Watch offers coverage of food and water issues, from farmed fish to desalination
Food Rights Network has the latest news on food safety issues
"Power Steer" Michael Pollan's article follows one setter from birth to butcher, revealing how much fossil fuel is hidden in industrial produced meat
Saving the Ocean Population, pollution, overfishing, and climate have all put the oceans in peril. Carl Safina's show looks at those who are working to protect and restore them
"Global Warming's Terrifying New Math Bill McKibben's article looks at the consequences and urges us to keep our fossil fuels safely buried
NASA's Climate page offers information, maps, images and interactives about climate
Skeptical Science gathers the arguments used against the notion that humans are behind global warming and puts them under the microscope
The Habitable Planet looks at many sides of population
Population Connection has a great video that lets you watch world population growth over the past two thousand years
"Beyond 7 Billion" is a Los Angeles Times five part report on population. Online, with photos and videos