Environmental News Network - ENN Original News

Aura's Ten Year Mission Improves our Understanding of Ozone
This week, on July 15, NASA's Aura satellite celebrated its 10th anniversary. Happy belated, Aura! The mission of Aura, which is Latin for breeze, centers on obtaining measurements of ozone, aerosols and key gases throughout the atmosphere. And after one decade in space, the satellite has provided vital data about the cause, concentrations and impact of major air pollutants. >> Read the Full Article
Rainwater discovered below the Earth's fractured upper crust
When it rains, where does the water go? Well for one, a lot of rainwater will funnel its way off roads and impermeable surfaces and will make its way into storm sewers. Another path might be directly into rivers and lakes. Or, rainwater might get soaked up by soil where it will then infiltrate into the ground and replenish aquifers. But just how deep does this rainwater infiltrate? According to new research, rainwater can penetrate below the Earth's fractured upper crust - which is at least eight miles below the Earth's surface! >> Read the Full Article
Sand Power: A Better Battery
Technology of the future is hard to see coming â€“ sometimes because you can't see it. Advances in nanotechnology are the driving force behind longer lasting Lithium-ion batteries. Currently, Lithium-ion batteries are used to power every-day technologies like cell phones, computers, cameras and cars. Their energy source is a carbon-based graphite anode, which is nothing short of polarizing. Battery life has always been a major concern with Li-ion batteries. The solution is the most abundant compound in the earth's crust: SiO2, - or â€“ more commonly â€“ sand. The next generation of battery technology is using sand as a source for the production of nano-silicon, an anode material for Li-ion batteries. >> Read the Full Article
Record Radiation in South America
Astrobiologists from the United States and Germany recorded the highest known level of solar UV radiation to reach Earth's surface. This was around 10 years ago. On December 29, 2003, the UV Index (UVI) peaked, reaching the blistering number of 43.3 over the Andes Mountains in Bolivia. To put this in context, a beachgoer in the United States would expect a UVI of 8 or 9 on a summer day. Even with an 8 or a 9, one may not escape the day without sunburn. Nonetheless, it has taken scientists 10 years to detail a report of this data while taking into account all of the variables and anomalies monitored from an international network of dosimeters â€“ or Eldonets (European Light Dosimeter Network) â€“ that measure UV radiation worldwide. This system is comprised of more than 100 stations across 5 continents to account for variation in the atmosphere above each station. >> Read the Full Article
SAR11 and Methane
With the focus on reducing carbon emissions, we often forget about methane â€“ another greenhouse gas that is way more powerful as an atmospheric pollutant than carbon dioxide. Methane emissions can come from industry, agriculture, and waste management activities, but can also be emitted from a number of natural sources. One newly discovered natural source: SAR11. >> Read the Full Article
Choosing the Right Path: How Air Travel Affects Climate Change
It has been well documented that one negative of air travel â€“ besides the food â€“ is the emission of CO2 from jet engines. But what about contrails? Dr. Emma Irvine, Professor Keith Shine, and Professor Sir Brian Hoskins, at the Department of Meteorology at the University of Reading have linked contrails to global climate change in a study published in IOP Publishingâ€™s journal Environmental Research Letters. According to their report, contrails may have a greater radiative forcing (the capacity for an agent to enact climate change via warming) than CO2. >> Read the Full Article
The economic risks of climate change
New independent report identifies challenges facing U.S. businesses and policymakers; describes strategies to avoid significant, unequally-spread economic disruptions. The American economy faces major risks from climate change, including damaging coastal storms, growing heat-related mortality, and declining labor productivity, according to an independent report released today by business, education and political leaders. >> Read the Full Article
New study challenges theory that emperor penguins return to same area each year
Philopatry is the tendency of an organism to stay in, or return to its home area. Many animal species are considered philopatric because they often return to their birthplace year after year to breed. Revisiting the same site is advantageous because nests and courtship areas have already been established while competition from other animals is largely non-existent due to territoriality. Researchers have long thought that emperor penguins were a prime example of this phenomenon, however a new study shows that this species may be adapting to changing environments and may not necessarily be faithful to previous nesting locations. >> Read the Full Article
Soccer Under The Sun
The 2014 FIFA World Cup Brazil is underway and off to a bright start. For the first time in the tournament's history, matches will be held in stadiums powered by solar energy. Footballers from the 32 nations represented may curse the sun and the swelter it brings, but Yingli Solar, the world's largest solar panel manufacturer and a FIFA World Cup Sponsor, has captured an opportunity on the world's biggest stage. Yingli Solar estimates its solar panels to generate more than 1MW per year and clean electricity for 25 years or more. The iconic EstÃ¡dio do MaracanÃ£ that witnessed PelÃ©'s 1000th career goal and much of Brazil's rich footballing history is one of the two sites that received this modern upgrade. This Rio de Janeiro landmark that opened in 1950 now boasts 1,500 Yingli Solar panels with the capability to produce 550MWh of clean electricity per year. >> Read the Full Article
"Tuning" the silk: How spiders use vibrations to learn about their prey, mates, and web
The fine craftsmanship of a spider's web helps these eight-legged arachnids catch their prey. But these silk-threaded designs can tell a spider a lot more than what they will be having for dinner. The spider that sits in the middle of its web monitors the silk threads for vibrations. And according to a new discovery by researchers at the Universities of Oxford, Strathclyde, and Sheffield the frequencies of these vibrations carry specific information about the prey, mates, and even the structural integrity of the web. >> Read the Full Article