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How Hot Was It Long Ago
The question seems simple enough: What happens to the Earth’s temperature when atmospheric carbon dioxide levels increase? It has happened in the past. The answer is elusive. However, clues are hidden in the fossil record. A new study by researchers from Syracuse and Yale universities provides a much clearer picture of the Earth’s temperature approximately…
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A Big Bird Flapping
How does a baby bird learn to fly? One anecdote is to push them out of the nest and hope they do not hit the ground. It is also similar o how a human baby learns to walk. The muscles have to grow strong enough to do the job. It can take months for their…
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Short Term Air Emissions and Their Effect on Global Warming
Fast action on certain pollutants such as black carbon, ground-level ozone and methane may help limit near term global temperature rise and significantly increase the chances of keeping temperature rise below 3.6 degrees F. Protecting the near-term climate is central to significantly cutting the risk of amplified global climate change linked with rapid and extensive…
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The Fight Against Mosquitoes
Mosquitoes are not very popular with human beings. They suck your blood and can cause infections. Many ways have been devised to limit their attacks. Female mosquitoes are efficient carriers of deadly diseases such as malaria, dengue and yellow fever, resulting each year in several million deaths and hundreds of millions of cases. To find…
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A Medium Solar Flare
The Sun unleashed an M-2 (medium-sized) solar flare, an S1-class (minor) radiation storm and a spectacular coronal mass ejection on June 7, 2011. The large cloud of particles mushroomed up and fell back down looking as if it covered an area of almost half the solar surface. A solar flare is a sudden brightening observed…
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Iceberg Fertilizer
Iceberg are just frozen water. Water picks up other stuff when it freezes whether as dissolved or scraped up. Icebergs calving off of Antarctica are shedding substantial iron — the equivalent of a growth-boosting vitamin — into waters starved of the mineral, a new set of studies demonstrates. This iron is fertilizing the growth of…
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World Environment Day
World Environment Day is a day that is supposed to stimulate awareness of the environment and enhance political attention and public action. The official day is June 5. This was the day that the United Nations Conference on the Human Environment began. The first World Environment Day was on 1973. The theme this year is…
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Fuel Economy Labels by EPA
What car is better at least in terms of fuel use, costs and environmental benefits. The decision will never be simple. The U.S. Department of Transportation and the U.S. Environmental Protection Agency have released new fuel economy labels that will help consumers take advantage of the increased efficiency standards achieved under the Obama Administration. The…
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Worlds Between Stars
A planet, historically, is a celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighboring region of planetesimals. Astronomers, including a NASA-funded team member, have discovered a new class of Jupiter-sized planets floating…
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The Salty Seas of Earth
Final preparations are under way for the June 9 launch of the international Aquarius/SAC-D observatory. The mission’s primary instrument, Aquarius, will study interactions between ocean circulation, the water cycle and climate by measuring ocean surface salinity. On average, seawater in the world’s oceans has a salinity of about 3.5% (35 g/L). In addition to Aquarius,…