Earth News, Earth Science, Energy Technology, Environment News

July 29, 2015

A cataclysmic event of a certain age
Santa Barbara CA (SPX) Jul 29, 2015
At the end of the Pleistocene period, some 13,000 years ago a cosmic impact triggered an abrupt cooling episode that earth scientists refer to as the Younger Dryas. New research by UC Santa Barbara geologist James Kennett and an international group of investigators has narrowed the date to a 100-year range, sometime between 12,835 and 12,735 years ago. The team's findings appear in the Proceedings of the National Academy of Sciences. The researchers used Bayesian statistical analyses of 354 dates ... read more

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First applications from Sentinel-2A From agricultural monitoring to charting changing lands, early images from Europe's new Sentinel-2A satellite show how the 'colour vision' mission's critical observations can be used to keep us and ... more		ESA hands over control of the MSG-4 weather satellite On 26 July at 09:30 GMT (11:30 CEST), ESA handed control of Europe's last Meteosat Second Generation weather satellite, MSG-4, to EUMETSAT. This follows the launch of the satellite on 15 July ... more		Bleach a possible key to life on earth Hydrogen peroxide - commonly used as hair bleach - may have provided the energy source for the development of life on Earth, two applied mathematicians have found. The heat from ancient geothermal v ... more
				Twin volcanic chains above a single hotspot with distinct roots Located in the South Atlantic, thousands of kilometers away from the nearest populated country, Tristan da Cunha is one of the remotest inhabited islands on earth. Together with the uninhabited neig ... more		Marine plankton brighten clouds over Southern Ocean New research using NASA satellite data and ocean biology models suggests tiny organisms in vast stretches of the Southern Ocean play a significant role in generating brighter clouds overhead. Bright ... more

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Diversity of European butterflies could be seriously underestimated Since 2006, the team of researchers has sequenced the mitochondrial DNA of all the known species of butterflies in the Iberian peninsula (228) and its main populations. The result is a report that c ... more		What killed off the megafauna Rapid phases of warming climate played a greater role in the extinction of megafauna in the Late Pleistocene than did human activity, a new study shows. The study helps to inform the debate about wh ... more		Renewables outpace fossil fuels despite US policy shift: IEA At COP30, senator warns US 'deliberately losing' clean tech race with China Wallets, not warming, make voters care about climate: California governor		Antarctic Offers Insights Into Life on Mars The cold permafrost of Antarctica houses bacteria that thrive at temperatures below freezing, where water is icy and nutrients are few and far between. Oligotrophs, slow-growing organisms that prefe ... more
				Earth and Mars Could Share A Life History While life is everywhere on Earth, there is much debate about how it began. Some believe it originated naturally from the chemistry found on our planet as it evolved. Others hypothesize that life - ... more		Finding Another Earth The discovery of a super-Earth-sized planet orbiting a sun-like star brings us closer than ever to finding a twin of our own watery world. But NASA's Kepler space telescope has captured evidence of ... more

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Is science drawing closer to an alien world? NASA's discovery of Earth-like exoplanet Kepler-452b, nicknamed "Earth 2.0", has social media buzzing about the chances of finding a faraway world, possibly with alien life or key resources such as water. ... more		Airbus DS to build JUICE, ESA's next life-tracker inside the Solar System The European Space Agency (ESA) has selected Airbus Defence and Space as the prime contractor to develop and build the JUICE (JUpiter ICy moons Explorer) spacecraft. JUICE is the first large mission ... more		Five European NATO powers vow to tackle 'hybrid threats' Colombia inks $4.3 bn deal to buy Swedish warplanes US to hold new military exercises with Trinidad and Tobago		Space-eye-view could help stop global wildlife decline Conservation scientists need to collaborate with space agencies, such as NASA and the European Space Agency (ESA), to identify measures which help track biodiversity declines around the world. Scien ... more
Greenhouse gas source underestimated from the US Corn Belt Estimates of how much nitrous oxide, a significant greenhouse gas and stratospheric ozone-depleting substance, is being emitted in the central United States have been too low by as much as 40 percen ... more		Trigger found for defense to rice disease Biologists have discovered how the rice plant's immune system is triggered by disease, in a discovery that could boost crop yields and lead to more disease-resistant types of rice. Rice is central t ... more		Rains, floods kill 81 in Pakistan: disaster agency Torrential rains and flooding have killed 81 people in Pakistan over the past two weeks and affected almost 300,000, the disaster management agency said Tuesday, warning of more bad weather to come. ... more		Teenager killed, buildings damaged in Indonesian quake A powerful earthquake rocked remote eastern Indonesia on Tuesday, killing a teenage boy who fell into a river as he fished and damaging several buildings. ... more

	Southeast Asia sees little progress on haze as fires rage Southeast Asian nations meeting Tuesday to discuss the problem of haze that shrouds the region's skies every year made little progress, as the number of smog-belching forest fires was on the rise in Indonesia. ... more		Nigerian army frees dozens of women, children from Boko Haram Nigeria's army said Tuesday it had liberated 30 hostages held by Boko Haram, including 21 children and seven women, amid ongoing offensives against the extremists in the country's northeast. ... more

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