Space traffic may be cause of increase in polar mesospheric clouds
A recent increase in polar mesospheric clouds could be due to a recent increase in space traffic, a new study suggests. Polar mesospheric clouds are diffuse collections of water ice crystals in the mesosphere near the poles ...
Hurricanes could increase over western Europe as climate warms
Damaging hurricanes are familiar along the North American east coast but are relatively rare in western Europe. That could change as Earth's climate warms over the next century, according to a new study. Western European ...
What will Voyager 1 discover at the bow of the solar system?
As the Voyager 1 spacecraft approaches the very edges of our solar system, space scientists await to see if it will discover the solar system's 'bow shock'; a theorized pile up of gas, dust, and cosmic rays, ...
Deserts 'greening' from rising CO2
Increased levels of carbon dioxide (CO2) have helped boost green foliage across the world's arid regions over the past 30 years through a process called CO2 fertilisation, according to CSIRO research.
Past decade saw unprecedented warming in the deep ocean
From 1975 on, the global surface ocean has shown a pronounced-though wavering-warming trend. Starting in 2004, however, that warming seemed to stall. Researchers measuring the Earth's total energy budget-the balance of sunlight ...
CryoSat maps largest-ever flood beneath Antarctica
(Phys.org) —ESA's CryoSat satellite has found a vast crater in Antarctica's icy surface. Scientists believe the crater was left behind when a lake lying under about 3 km of ice suddenly drained.
Scientists say Russian meteor shockwave went twice around globe
How did a third radiation belt appear in the Earth's upper atmosphere?
(Phys.org) —Since the discovery of the Van Allen radiation belts in in the Earth's upper atmosphere in 1958, space scientists have believed that these belts consisted of two doughnut-shaped rings of highly ...
Ups-and-downs of Indian monsoon rainfall likely to increase under warming
Day-to-day rainfall in India might become much more variable due to climate change—potentially putting millions of poor farmers and the country's agricultural productivity at risk.
Mars water-ice clouds are key to odd thermal rhythm
(Phys.org) —Researchers using NASA's Mars Reconnaissance Orbiter have found that temperatures in the Martian atmosphere regularly rise and fall not just once each day, but twice.
Ocean acidification killing oysters by inhibiting shell formation, study finds
(Phys.org) —For the past several years, the Pacific Northwest oyster industry has struggled with significant losses due to ocean acidification as oyster larvae encountered mortality rates sufficient to ...
Pollution in Northern Hemisphere helped cause 1980s African drought
Decades of drought in central Africa reached their worst point in the 1980s, causing Lake Chad, a shallow lake used to water crops in neighboring countries, to almost dry out completely.
Cassini sees precursors to aerosol haze on Titan
(Phys.org) —Scientists working with data from NASA's Cassini mission have confirmed the presence of a population of complex hydrocarbons in the upper atmosphere of Saturn's largest moon, Titan, that later ...
Elevated carbon dioxide making arid regions greener
Scientists have long suspected that a flourishing of green foliage around the globe, observed since the early 1980s in satellite data, springs at least in part from the increasing concentration of carbon dioxide in Earth's ...