Off-shore Wind Turbines May Weaken Hurricanes
February 26, 2014 07:51 AM - ENN Staff
As one of nature's most destructive forces, hurricanes are unstoppable storms that can cause total devastation for coastal communities. While Mother Nature is unpredictable and uncontrollable, there are researchers and scientists who think hurricanes can be weakened or even stopped. One idea: wind turbines. New research by the University of Delaware and Stanford University shows that an army of offshore wind turbines could reduce hurricanes' wind speeds, wave heights and flood-causing storm surge.
Limitations of climate engineering
February 25, 2014 12:59 PM - Jan Steffen, GEOMAR Helmholtz Centre for Ocean Research Kiel
Despite international agreements on climate protection and political declarations of intent, global greenhouse gas emissions have not decreased. On the contrary, they continue to increase. With a growing world population and significant industrialization in emerging markets such as India and China the emission trend reversal necessary to limit global warming seems to be unlikely. Therefore, large-scale methods to artificially slow down global warming are increasingly being discussed. They include proposals to fertilize the oceans, so that stimulated plankton can remove carbon dioxide (CO2) from the atmosphere, or to reduce the Sun's incoming radiation with atmospheric aerosols or mirrors in space, so as to reduce climate warming. All of these approaches can be classified as "climate engineering". "However, the long-term consequences and side effects of these methods have not been adequately studied," says Dr. David Keller from the GEOMAR Helmholtz Centre for Ocean Research Kiel. Together with colleagues the expert in earth system modeling has compared several Climate Engineering methods using a computer model. The results of the study have now been published in the internationally renowned online journal Nature Communications.
Free mobile green apps
February 25, 2014 10:25 AM - Robin Blackstone, ENN
Incorporating sound environmental decisions in our daily lives has been made easier with the availability of several green apps for the mobile device. Below is a list of five useful environmental apps that are free and feature discussions and motivators for carbon footprint identification and reduction, climate change, global forest cover, product scoring based upon environmental impact, and environmental actions all aimed at making better choices for sustainable living.
UK unveils world first carbon capture project at gas-fired power station
February 24, 2014 01:46 PM - ClickGreen Staff, ClickGreen
Deputy Prime Minister Nick Clegg and Energy Secretary Ed Davey have announced a ground-breaking deal with Shell which could generate enough clean energy to power half a million homes, and capture 1 million tonnes of CO2 each year.
COLLEGIATE CORNER: Fossil Fuels vs. Renewable Resources
February 24, 2014 01:07 PM - Flavio Avalos, Class of 2015, Wakefield High School, Arlington, VA
Fossil fuels have been the main source of the energy all over the world. They increase the amount of CO2 emissions, and the emission of CO2 is a great cause of global warming in the atmosphere, destroying the atmospheric layers. What can we do to lower the demand of fossil fuels and become more eco friendly with renewable energy resources? The percent of US transportation sector consumption is 95.4% fossil fuels (Article 3), and this shows the reliance of the US on fossil fuels. As the Institute for Energy states, "Fossil Fuels make modern life possible" and that the only reason that our modern society works and the privileges we get are all due to the fact of fossil fuels (Article 3). Need I remind you: fossil fuels are limited and could go out?
Experts develop low-cost solar panels by recycling rare metals
February 21, 2014 09:45 AM - ClickGreen Staff, ClickGreen
Swedish firm Midsummer, a leading supplier of production lines for cost effective manufacturing of flexible thin film CIGS solar cells, has developed a unique process to recover leftover rare metals such as indium and gallium when manufacturing thin film CIGS solar cells.
Just How Clean is Natural Gas?
February 20, 2014 10:23 AM - S.E. Smith, Care2
Just the other day I hopped on a natural gas bus to head to downtown Oakland, enjoying one of the East Bay’s many environmentally-friendly public transit options. But how friendly was that bus to the birds, the bees and the trees?
Wind farms have longer operational life than previously thought
February 20, 2014 08:03 AM - ClickGreen Staff, ClickGreen
New wind farms have a longer economic lifespan than gas-turbine power stations, according to fresh research that also dismisses claims that ageing wind installations are a bad investment. The UK has a target of generating 15 per cent of the nation's energy from renewable resources such as wind farms by 2020. There are currently 4,246 individual wind turbines in the UK across 531 wind farms, generating 7.5 per cent of the nation's electricity.
Magma storage at Mount Hood compared to refrigerated peanut butter
February 19, 2014 09:10 AM - National Science Foundation
New research results suggest that magma sitting 4-5 kilometers beneath the surface of Oregon's Mount Hood has been stored in near-solid conditions for thousands of years. The time it takes to liquefy and potentially erupt, however, is surprisingly short--perhaps as little as a couple of months.
Air travel gone batty!
February 18, 2014 01:37 PM - Jason Socrates Bardi, American Institute of Physics
By exploring how creatures in nature are able to fly by flapping their wings, Virginia Tech researchers hope to apply that knowledge toward designing small flying vehicles known as "micro air vehicles" with flapping wings. More than 1,000 species of bats have hand membrane wings, meaning that their fingers are essentially "webbed" and connected by a flexible membrane. But understanding how bats use their wings to manipulate the air around them is extremely challenging -- primarily because both experimental measurements on live creatures and the related computer analysis are quite complex.