Five years ago, California set out to be a world leader in adopting ambitious greenhouse gas reduction targets and created the world's fourth-largest carbon-trading program. Not bad for one state.

Except it isn't helping the state, it is subsidizing others. And some of the emissions targets are not emissions at all, they are instead epidemiological claims like small micron particulate matter (PM2.5), which have had zero acute deaths but were the target of EPA and California environmentalists despite a lack of evidence.

Worldwide poverty has dropped dramatically, we are in the Long Peace when it comes to war, the old cycles of famine boom and bust have leveled off, science has made it possible for everyone to live better for longer and spend less on basic necessities.

The world continues to improve. Why, then, do polls consistently show that people believe otherwise? The answer may lie in a phenomenon called "prevalence induced concept change."

Fear is a healthy response, kept intact over eons of evolution, but sometimes it can be irrational. A new brain circuit discovery may help make sense of the madness. The study details the role of dopamine in ensuring that rats stop being afraid when there isn't anything to be afraid of anymore. 

There is talk in America of adding even more nutrition information to food labels, but as long as entire industries are exempt from evidence-based claims, it won't do much good. It will still be woo central in the supplement, holistic, and weight-loss camps.

The European Association for the Study of Obesity investigated the legality of on-pack nutrition and health claims routinely found on commercially available meal replacement shakes for sale in the UK and found that over 75 percent are in violation of EU Nutrition and Health Claims regulations. 

Like many Americans, like many people in all rich nations, New Yorkers somehow still have a lot of be depressed about. And they are getting obese. And not sleeping enough. In 2006, New York declared if they just banned trans fats, diabetes would go down, but rates actually went up, and outside the wealthy white demographic it has remained high. 

Yet New Yorkers think they are healthy.

Mounting levels of atmospheric carbon dioxide reduce the medicinal properties of milkweed plants that protect monarch butterflies from disease, according to a recent experiment.