If someone cries 'Eureka!' because it looks like oxygen appeared in Earth's ancient atmosphere long before the body of evidence indicated, be careful. If it was a chromium isotope system reading that caused the enthusiasm, it might need to be curbed.
Hybrid materials known as mixed matrix membranes are considered a promising approach to capture carbon dioxide and mitigate against global warming. These materials are derived from a polymer combined with porous nanoparticles. We show that materials prepared using porous organic polymers are resilient to the acidic impurities present in industrial gas streams, whereas other hybrid materials fail. This means that they can be effective in carbon capture applications where these impurities are present.
Environmental economists predict climate change will bring big manufacturing losses to China by mid-21st century.
Groundwater depletion could be significant source of atmospheric carbon dioxide.
Groundwater recharge in the Western US will change as the climate warms -- the dry southern regions will have less and the northern regions will have more, according to new research. The new study covers the entire US West, from the High Plains states to the Pacific coast, and provides the first detailed look at how groundwater recharge may change as the climate changes. Groundwater is an important source of freshwater, particularly in the West.
Plant scientists at the University of Liverpool have revealed new insights into the mechanisms that allow certain plants to conserve water and tolerate drought. The research, which is published in The Plant Cell, could be used to help produce new crops that can thrive in previously inhospitable, hot and dry regions across the world.
Some impacts of global warming -- such as sea level rise and coastal flooding -- are already locked in and unavoidable, according to a major research project.
Two new studies from The University of Texas at Austin have significantly improved scientists' ability to predict the strength and duration of droughts caused by La Niña - a recurrent cooling pattern in the tropical Pacific Ocean. Their findings, which predict that the current La Niña is likely to stretch into a second year, could help scientists know years in advance how a particular La Niña event is expected to evolve.
Researchers at the Department of Mechanical and Process Engineering at ETH Zurich, Switzerland, have concentrated 3,000 'suns' of solar thermal energy into a solar reactor at 1,500°C for thermochemical splitting of H2O and CO2 into hydrogen and carbon monoxide (syngas), the precursor to kerosene and other liquid fuels.
A new review article presents evidence that argues for a more nuanced approach to the design of global-change experiments -- one that acknowledges and purposefully incorporates the variability inherent in nature.