An experiment by Microsoft Research aims to see how people will interact to solve a puzzle that relies on teamwork and cellphones.

The American Power Act would at last set limits on US greenhouse gas emissions

The drug company paid experts disciplined for deficiencies in patient care to lecture other doctors on prescribing, finds an analysis by New Scientist.

They are billed as "healthcare professionals who spend years building expertise in their fields". Using materials grounded in science, they educate their peers in the risks and benefits of drugs. This is how Pfizer, the pharmaceuticals giant, describes the experts it hires to lead forums in which doctors are lectured on the use of its products. Yet New Scientist has found that some of Pfizer's experts have been disciplined for deficiencies in patient care, while others have been reprimanded for how they conducted drug research trials.

Plans are taking shape for the day when a global coalition may have to "hack the planet" in a bid to reverse the ravages of global warming. Proposals to cool the Earth by deploying sunshades or sucking carbon dioxide from the atmosphere were considered fanciful just a few years ago, but are now being considered by politicians in the US and UK.

An exclusive study for New Scientist shows that we can radically cut carbon emissions and keep our lifestyles: a report.

Lobbying has led to Congress considering tariffs on developing nations, which could be a deal-breaker at December's climate change talks in Copenhagen.

As the Copenhagen conference on climate change draws closer, a new analysis shows that the pledges made by rich nations will not be enough to avert a dangerous rise in temperatures.

WHAT might a truly fair and effective solution to climate change look like?

You might assume that the vast sums the US spends on healthcare must produce better patient outcomes than the rest of the world