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Pollution


— Science

Low-cost air filter could help Beijing breathe easy

By - February 26, 2015 1 Picture
Material scientists at Stanford University have developed a highly effective semitransparent air filter that can collect 99 percent of the very small PM2.5 particles, considered the most harmful to the human respiratory tract. The low-cost filters, which don’t require power to function, could be used to build better protective facemasks, window screens, filtration systems in hospitals, and perhaps even to reduce pollution from cars and industrial smoke stacks. Read More
— Environment

ESA successfully tests FLEX instrument, designed to create maps of photosynthetic activity

By - February 4, 2015 1 Picture
The European Space Agency (ESA) has successfully tested its Fluorescence Explorer mission (FLEX), which is vying for a spot on the organisation’s eight Earth Explorer satellite. The mission, which aims to create global maps of photosynthetic activity, will allow for the identification of vegetation suffering degrees of stress that simply aren’t visible to the human eye. It has the potential to significantly further our understanding of the global carbon cycle, and could have an impact on agricultural management. Read More
— Environment

NASA takes climate change study to the air

By - January 8, 2015 1 Picture
With the goal of shedding more light on a number of Earth system processes whose effect on our climate is incompletely understood, NASA will this year launch five new airborne field campaigns. These studies will look at long-range air pollution, warming ocean waters, melting Greenland glaciers, greenhouse gas sources, fires in Africa and clouds over the Atlantic, with the captured data to complement satellite- and surface-based observations to help provide a better understanding of the interconnected systems that affect our climate and how it is changing. Read More
— Space

New crowdsourcing project calls on citizen scientists to catalog images of cities at night

By - December 18, 2014 5 Pictures
A new crowdsourcing initiative is calling upon the public to help catalog the ever increasing library of images snapped of our planet, and more importantly its cities, at night from the International Space Station (ISS). With your help, the Cities at Night project could help map light pollution spanning the course of the 16 year period in which the images where taken, with the added bonus of giving volunteers the opportunity to flick through a catalog of stunning images that highlight the mark we make on our planet at night. Read More
— Environment

Electrodialysis identified as potential way to remove salt from fracking waste water

By - October 26, 2014 2 Pictures
Fracking is a highly controversial and divisive issue. Proponents argue that it could be the biggest energy boom since the Arabian oil fields were opened almost 80 years ago, but this comes at a serious cost to the environment. Among the detrimental effects of the process is that the waste water it produces is over five times saltier than seawater, which is, to put it mildly, not good. A research team led by MIT that has found an economical way of removing salt from fracking waste water that promises to not only reduce pollution, but conserve water as well. Read More
— Health and Wellbeing

New study aims to highlight pollution risks of megacity street canyons

By - September 29, 2014 1 Picture
A novel study undertaken by an international collaboration of universities – headed by King's College London – aims to assess the impact of toxic fumes and other pollutants on the residents of high-rise buildings. Such studies are becoming increasingly important to metropolitan areas where real estate is scarce, forcing us to build ever upwards in order to satiate the ever-increasing need for accommodation. Read More
— Science

Detecting industrial pollution could be an effective approach to finding ET

By - July 31, 2014 1 Picture
According to researchers at the Harvard-Smithsonian Center for Astrophysics (CfA), we might soon be able to detect hints of technologically advanced alien civilizations by measuring high levels of polluting gases in the atmospheres of distant exoplanets. The approach should become viable soon after the James Webb Space Telescope (JWST) is launched in late 2018. Read More
— Science

New study indicates dramatic fall-off in global crop yields by the year 2050

By - July 31, 2014 1 Picture
A new study has examined the potentially disastrous implications that a combination of global warming and air pollution could have on crop yields by the year 2050. The research is one of the first projects to take into account a combination of the two dangers, and highlights the humanitarian crisis that could arise should the threat not be tackled head-on. Read More
— Good Thinking

Student-designed device reduces gas lawnmower air pollution by over 90 percent

By - July 8, 2014 3 Pictures
Gas-powered lawnmowers are notorious polluters. According to the US Environmental Protection Agency, running a new gas mower for one hour produces as much air pollution as would be generated by 11 typical automobiles being driven for the same amount of time. Switching to an electric or reel mower is certainly one option, but for those applications where it's gotta be gasoline, a team of engineering students from the University of California, Riverside are developing another: an attachment that they claim reduces noxious emissions by over 90 percent. Read More
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