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NASA reports unknown source of banned ozone-destroying compound
August 21, 2014 07:33 AM - ClickGreen Staff, ClickGreen
NASA research has revealed the Earth's atmosphere contains an unexpectedly large amount of an ozone-depleting compound from an unknown source decades after the compound was banned worldwide. Carbon tetrachloride (CCl4), which was once used in applications such as dry cleaning and as a fire-extinguishing agent, was regulated in 1987 under the Montreal Protocol along with other chlorofluorocarbons that destroy ozone and contribute to the ozone hole over Antarctica. Parties to the Montreal Protocol reported zero new CCl4 emissions between 2007-2012.
Harnessing High-Altitude Wind Energy
August 14, 2014 07:53 AM - ClickGreen Staff, ClickGreen
Researchers have discovered that the world's energy needs could easily be met by harnessing the power potential of high-altitude winds. Developers in an emerging field known as airborne wind energy envisage using devices that might look like parachutes or gliders to capture electricity from the strong, steady winds that blow well above the surface in certain regions.
Calentamiento del Océano Atlántico ligado a los vientos alisios del Pacífico
August 6, 2014 08:00 AM - Staff ClickGreen, ClickGreen, ClickGreen
Una nueva investigación ha encontrado un rápido calentamiento del Océano Atlántico el cual probablemente es causado por el calentamiento global y se ha alimentado de los vientos alisios del Pacífico Ecuatorial. Actualmente los vientos están a un nivel nunca antes visto en los registros observados, los cuales se extienden a la década de 1860. El aumento de estos vientos ha causado enfriamiento del este del Pacífico tropical, amplificación de la sequía californiana, ha acelerado el aumento del...
Spray-on Solar Panels?
August 4, 2014 03:33 PM - ClickGreen Staff, ClickGreen
A team of scientists at the University of Sheffield are the first to fabricate perovskite solar cells using a spray-painting process — a discovery that could help cut the cost of solar electricity. Experts from the University's Department of Physics and Astronomy and Department of Chemical and Biological Engineering have previously used the spray-painting method to produce solar cells using organic semiconductors - but using perovskite is a major step forward.
Atlantic Ocean warming linked to Pacific trade winds
August 4, 2014 07:38 AM - Staff ClickGreen, ClickGreen
New research has found rapid warming of the Atlantic Ocean, likely caused by global warming, has turbocharged Pacific Equatorial trade winds. Currently the winds are at a level never before seen on observed records, which extend back to the 1860s. The increase in these winds has caused eastern tropical Pacific cooling, amplified the Californian drought, accelerated sea level rise three times faster than the global average in the Western Pacific and has slowed the rise of global average surface temperatures since 2001.
La contaminación por plomo industrial alcanzó a los exploradores del Polo Sur
July 30, 2014 09:18 AM - ClickGreen Staff, ClickGreen, ClickGreen
El explorador noruego Roald Amundsen fue el primer hombre en llegar al Polo Sur en diciembre de 1911. Más de 100 años más tarde, un equipo internacional de científicos dirigido por Joe McConnell, del Instituto de Investigación del Desierto de Nevada (DRI), ha demostrado que la contaminación atmosférica procedente de las actividades industriales llegó mucho antes. Utilizando datos de 16 muestras de hielo recogidas en lugares muy separados entre sí en todo el continente antártico...
Green Turtle success story
July 30, 2014 07:48 AM - Staff, Click Green, ClickGreen
More than 70 years after major turtle nesting beaches became protected on the remote UK overseas territory of Ascension Island researchers are now reporting a boom in population numbers. Scientists from the University of Exeter and Ascension Island Government Conservation Department report that the number of green turtles nesting at the remote South Atlantic outpost has increased by more than 500 per cent since records began in the 1970s.
Industrial lead pollution beat explorers to the South Pole by 22 years
July 28, 2014 08:58 AM - ClickGreen Staff, ClickGreen
Norwegian explorer Roald Amundsen became the first man to reach the South Pole in December of 1911. More than 100 years later, an international team of scientists led by Joe McConnell of Nevada's Desert Research Institute (DRI) have proven that air pollution from industrial activities arrived long before. Using data from 16 ice cores collected from widely spaced locations around the Antarctic continent, including the South Pole, McConnell's team created the most accurate and precise reconstruction to date of lead pollution over the Earth's southernmost continent.
Drought Conditions Linked to Human Activity
July 15, 2014 08:52 AM - ClickGreen Staff, ClickGreen
US Government scientists have developed a new high-resolution climate model that shows southwestern Australia's long-term decline in fall and winter rainfall is caused by increases in manmade greenhouse gas emissions and ozone depletion. "This new high-resolution climate model is able to simulate regional-scale precipitation with considerably improved accuracy compared to previous generation models," said Tom Delworth, a research scientist at NOAA's Geophysical Fluid Dynamics Laboratory in Princeton, N.J., who helped develop the new model and is co-author of the research.
Pesticide impairs bees' ability to forage
July 14, 2014 09:11 AM - ClickGreen Staff, ClickGreen
A study that involved fitting bumblebees with tiny radio frequency tags found long-term exposure to a neonicotinoid pesticide hampers bees' ability to forage for pollen. The research by Nigel Raine, a professor at the University of Guelph, and Richard Gill of Imperial College, London, shows how long-term pesticide exposure affects individual bees' day-to-day behaviour, including pollen collection and which flowers worker bees chose to visit.