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Thread: World Environment News , Ecology websites etc |
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Thread Status: Active Total posts in this thread: 369
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
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Former Member
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
new wrinkle in ancient ocean chemistry
Scientists widely accept that around 2.4 billion years ago, the Earth's atmosphere underwent a dramatic change when oxygen levels rose sharply. Called the "Great Oxidation Event" (GOE), the oxygen spike marks an important milestone in Earth's history, the transformation from an oxygen-poor atmosphere to an oxygen-rich one paving the way for complex life to develop on the planet. Two questions that remain unresolved in studies of the early Earth are when oxygen production via photosynthesis got started and when it began to alter the chemistry of Earth's ocean and atmosphere . |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Previously Unknown Volcanic Eruption Helped Trigger Cold Decade
team of chemists from the U.S. and France has found compelling evidence of a previously undocumented large volcanic eruption that occurred exactly 200 years ago, in 1809. The discovery, published online this week in the scientific journal Geophysical Research Letters, offers an explanation as to why the decade from 1810 to 1819 is regarded by scientists as the coldest on record for the past 500 years.. |
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Former Member
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Giant Crack in Africa Will Create a New Ocean
A 35-mile rift in the desert of Ethiopia will likely become a new ocean eventually, researchers now confirm. The crack, 20 feet wide in spots, opened in 2005 and some geologists believed then that it would spawn a new ocean. But that view was controversial, and the rift had not been well studied. A new study involving an international team of scientists and reported in the journal Geophysical Research Letters finds the processes creating the rift are nearly identical to what goes on at the bottom of oceans, further indication a sea is in the region's future. The same rift activity is slowly parting the Red Sea too. |
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Former Member
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Earth2 tech
Automotive | Clean Power | Energy Storage | Green Building | Green IT | Policy | Smart Grid Car 2.0: How a Killer Algorithm Could be Key for Urban Transit |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Global Maps
NASA satellites give us a global view of what’s happening on our planet. To explore how key parts of Earth’s climate system change from month to month, click on one of the maps below or select from the complete list on the left. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Bolivia: Lake Titicaca at dangerously low levels
Evaporation blamed on global warming has reduced Lake Titicaca, one of the world's highest navigable lakes, to its lowest level since 1949, authorities said Thursday. Diminished rainfall and a rise in solar radiation have in the past four years led to critically low water levels that now threaten fish spawning areas and plant life, the Lake Titicaca Authority said in a statement. Titicaca's waters have dropped 81 centimeters (2.65 feet) since April and flora and fauna are apt to suffer damage if they drop another 30 centimeters (one foot), the statement said.--- |
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Former Member
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