Arctic permafrost is already thawing, creating lakes that emit methane. The heat-trapping gas could dramatically accelerate global warming. How big is the threat? What can be done?
A gallery of images captured by light microscopy reveals the high art of the natural world
The molecule ATP, famous as an essential energy source inside cells, also carries critical messages between cells. That dual role is suggesting fresh ideas for fighting human diseases
A new wave of start-ups wants to install rooftop solar panels on your house. Upfront cost: nothing
Plug-in hybrid trucks are improving the long view of the short haul
Subwaylike bus lines mobilize the urban future
Marine zoning is a bold remedy for sick seas
Trapped lightning could help zap trash and generate electricity
Tiny, ubiquitous sensors will allow us to index the physical world the way the Web maps cyberspace
The military, short on linguists, is building smart phone–based devices to do the job
Your PC can accomplish any computing task you ask of it. Why isn't the same true for robots?
Complex diseases have complex causes. Luckily, they also leave a multitude of traces
- From the Editor