It is the opposite of biting the hand that feeds you. This time around, it is a group of people who have been victims of shark bites campaigning to save this endangered animal: every year around seventy-three million sharks are slaughtered.
Palo Alto, CA — Scientists at the Carnegie Institution’s Department of Global Ecology have taken a new approach on examining a proposal to fix the warming planet. So-called geoengineering ideas—large-scale projects to change the Earth’s climate—have included erecting giant mirrors in space to reflect solar radiation, injecting aerosols of sulfate into the stratosphere making a global sunshade, and much more. Past modeling of the sulfate idea looked at how the stratospheric aerosols might affect Earth’s climate and chemistry.
The Arctic sea ice cover appears to have reached its minimum extent for the year, the third-lowest recorded since satellites began measuring sea ice extent in 1979, according to the University of Colorado at Boulder’s National Snow and Ice Data Center.
As the last ice age was ending, about 13,000 years ago, a final blast of cold hit Europe, and for a thousand years or more, it felt like the ice age had returned.
But oddly, despite bitter cold winters in the north, Antarctica was heating up.
The unusually hot summer that devastated Russia this year once again reminded of a trendy horror story called “global warming.” Proponents of this hypothesis, talking about their cause, have entirely lost sight of an abnormally cold winter in the Southern Hemisphere. Their opponents said that single point cannot be used for plotting. However, reasonable arguments both for and against the warming have not been presented to the general public. (more…)
Stanford, CA — Scientists have warned that avoiding dangerous climate change this century will require steep cuts in carbon dioxide emissions. New energy-efficient or carbon-free technologies can help, but what about the power plants, cars, trucks, and other fossil-fuel-burning devices already in operation? Unless forced into early retirement, they will emit carbon dioxide into the atmosphere for decades to come. Will their emissions push carbon dioxide levels beyond prescribed limits, regardless of what we build next? Is there already too much inertia in the system to curb climate change?
ANN ARBOR, Mich. — In what could be a step toward higher efficiency solar cells, an international team including University of Michigan professors has invalidated the most commonly used model to explain the behavior of a unique class of materials called highly mismatched alloys. (more…)
Palo Alto, CA — By integrating satellite mapping, airborne-laser technology, and ground-based plot surveys, scientists from the Carnegie Institution’s Department of Global Ecology, with colleagues from the World Wildlife Fund and in coordination with the Peruvian Ministry of the Environment (MINAM), have revealed the first high-resolution maps of carbon locked up in tropical forest vegetation and emitted by land-use practices.
