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By Mark Pierce
Wood or concrete for a cleaner environment?Wood seems like the obvious answer because it is natural, biodegradeable and renewable but in the railway industry it isn't so simple. Railroads around the world face environmental decisions as they replace millions of deteriorating cross ties, also known as railway>
Climate change mitigation could actually increase water shortage in some areas rather than reduce it, according to new research. The source of the problem is clear: greater demand for biofuels, intended to reduce emissions from fossil fuels, requires massive increases in irrigation in productive but relatively arid>
Black carbon pollutants from wood smoke might be enough to trap heat near the earth's surface and warm the climate but a new study led by McGill Professor Jill Baumgartner suggests that black carbon may also increase women's risk of cardiovascular disease.
To investigate the effects of black carbon pollutants>
The first fossils of a duckbilled dinosaur have been discovered in Africa, which means dinosaurs must have crossed miles of open water to get there.
Ajnabia odysseus was found in Morocco
and dates to the end of the Cretaceous, 66 million years ago. Ajnabia was a member of the duckbill dinosaurs, diverse plant>
For decades, scientists have assumed that the Holocene—the relatively quiet geological epoch spanning the last ~11,700 years—was marked by only a handful of small meteorite impacts, most of them modest in size. But a newly confirmed structure in southern China is now challenging that narrative.>
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>
