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News tagged with solar heat

Desert dust intensifies summer rainfall in U.S. southwest

(Phys.org) -- Dust is more than something to be brushed off the furniture. Scientists at Pacific Northwest National Laboratory found that dust kicked up from the desert floor acts like a heat pump in the atmosphere, ...

Space & Earth / Earth Sciences

created May 21, 2012 | popularity 4.9 / 5 (8) | comments 4 | with audio podcast

UK company to build Sun orbiter

The European Space Agency said on Friday it had awarded a 300-million-euro ($400 million) contract to a British technology firm to build a satellite to examine the Sun from closer up than any before it.

Space & Earth / Space Exploration

created Apr 27, 2012 | popularity 4.7 / 5 (3) | comments 3

Arctic Ocean could be source of greenhouse gas: study

(Phys.org) -- The fragile and rapidly changing Arctic region is home to large reservoirs of methane, a potent greenhouse gas. As Earth's climate warms, the methane, frozen in reservoirs stored in Arctic tundra ...

Space & Earth / Earth Sciences

created Apr 22, 2012 | popularity 4 / 5 (9) | comments 39 | with audio podcast

Solar thermal process produces cement with no carbon dioxide emissions

(Phys.org) -- While the largest contributor to anthropogenic greenhouse gas emissions is the power industry, the second largest is the more often overlooked cement industry, which accounts for 5-6% of all ...

Chemistry / Materials Science

created Apr 10, 2012 | popularity 4.6 / 5 (25) | comments 22 | with audio podcast report

Tidal forces could squeeze out planetary water

Alien planets might experience tidal forces powerful enough to remove all their water, leaving behind hot, dry worlds like Venus, researchers said.

Space & Earth / Space Exploration

created Feb 09, 2012 | popularity 5 / 5 (2) | comments 2 | with audio podcast

Global warming caused by greenhouse gases delays natural patterns of glaciation

Unprecedented levels of greenhouse gases in the Earth's atmosphere are disrupting normal patterns of glaciation, according to a study co-authored by a University of Florida researcher and published online Jan. 8 in Nature Ge ...

Space & Earth / Earth Sciences

created Jan 08, 2012 | popularity 3.5 / 5 (29) | comments 114 | with audio podcast

Evaluating the energy balance of Saturn's moon Titan

To understand the weather and climate on Earth as well as on other planets and their moons, scientists need to know the global energy balance, the balance between energy coming in from solar radiation and thermal energy radiated ...

Space & Earth / Space Exploration

created Jan 02, 2012 | popularity 4 / 5 (4) | comments 2

Jumping droplets take a lot of heat

Microscopic water droplets jumping from one surface to another may hold the key to a wide array of more energy efficient products, ranging from large solar panels to compact laptop computers.

Physics / General Physics

created Dec 12, 2011 | popularity 5 / 5 (6) | comments 0 | with audio podcast

Fossil-fuel emissions unbraked by financial crisis

Emissions of carbon dioxide (CO2) from fossil fuels and the cement industry scaled a record high in 2010, rocketing by 5.9 percent over 2009 in a surge led by developing countries, scientists reported on Sunday.

Space & Earth / Environment

created Dec 05, 2011 | popularity 5 / 5 (4) | comments 10

Abrupt permafrost thaw increases climate threat

As the Arctic warms, greenhouse gases will be released from thawing permafrost faster and at significantly higher levels than previous estimates, according to survey results from 41 international scientists ...

Space & Earth / Earth Sciences

created Nov 30, 2011 | popularity 4.4 / 5 (13) | comments 6 | with audio podcast

Canadian solar project wins top environment award

Canada has scooped a top prize for environmental protection awarded by the Austrian foundation Energy Globe for a community project that uses solar-powered heating to warm local houses.

Technology / Energy & Green Tech

created Nov 26, 2011 | popularity 4.8 / 5 (14) | comments 25

Temperature differences give rise to electricity

More than half of today's energy consumption is squandered in useless waste heat, such as the heat from refrigerators and all sorts of gadgets and the heat from factories and power plants. The energy losses ...

Technology / Engineering

created Nov 09, 2011 | popularity 4.7 / 5 (3) | comments 3

New materials turn heat into electricity

Most of today's power plants--from some of the largest solar arrays to nuclear energy facilities--rely on the boiling and condensing of water to produce energy.

Technology / Energy & Green Tech

created Nov 07, 2011 | popularity 5 / 5 (19) | comments 8 | with audio podcast

Testing geoengineering

Solar radiation management is a class of theoretical concepts for manipulating the climate in order to reduce the risks of global warming caused by greenhouse gasses. But its potential effectiveness and risks are uncertain, ...

Space & Earth / Environment

created Oct 26, 2011 | popularity 3.7 / 5 (3) | comments 1 | with audio podcast

Breakthrough furnace can cut solar costs

(PhysOrg.com) -- Solar cells, the heart of the photovoltaic industry, must be tested for mechanical strength, oxidized, annealed, purified, diffused, etched, and layered.

Technology / Energy & Green Tech

created Oct 25, 2011 | popularity 5 / 5 (8) | comments 11 | with audio podcast