A Modern Explorer's Journey
Are Healthy Buildings Built On Lies?
Why Terraforming Mars Could Fail
A BitTorrent For Electricity
Will a Cleaner Wiener Prevent Autism?
Contrary to widespread consumer belief, organic farming is not the best way to farm from an environmental point if view. The guiding principal of organic is to rely exclusively on natural inputs.  That was decided early in the 20th century, decades before before the scientific disciplines >
Where the river meets the sea, there is the potential to harness a significant amount of renewable energy, according to a team of mechanical engineers at MIT who evaluated the method of power generation called pressure retarded osmosis (PRO), in which two streams of different salinity are mixed to produce energy.>
Carbon tetrachloride (CCl4) was once used in dry cleaning and as a fire-extinguishing agent but once it was found to be a cause of ozone depleted, it was regulated in 1987 under the Montreal Protocol along with other chlorofluorocarbons. Parties to the Montreal Protocol have reported zero new CCl4 emissions since>
For most people, the Jurassic period conjures up images of huge dinosaurs chomping their way through lush vegetation and each other. But mammals and their immediate ancestors were also around 201 to 145 million years ago, just not as spectacular as we are now.  Early Jurassic mammals were thought to have>
Water has been detected on Mars in the form of permafrost and there is strong evidence that liquid water was a major component of the martian surface in the past.Clays are an important mineral group for discovering the past on Mars, not only to the presence of water, since clays are hydrous minerals, but they also>
For the first time, scientists have mapped elevation changes of Greenlandic and Antarctic glaciers.For the new digital maps, the researchers evaluated all data by the CryoSat-2 altimeter SIRAL. Satellite altimeter measure the height of an ice sheet by sending radar or laser pulses in the direction of the earth. These>