Indian man single-handedly plants a 1,360-acre forest A little more than 30 years ago, a teenager named Jadav "Molai" Payeng began burying seeds along a barren sandbar near his birthplace in northern India's Assam region to grow a refuge for wildlife. Not long after, he decided to dedicate his life to this endeavor, so he moved to the site so he could work full-time creating a lush new forest ecosystem. Incredibly, the spot today hosts a sprawling 1,360 acres of jungle that Payeng planted — single-handedly. Reinventing Fire Digging up and burning the deposits of ancient sunlight stored eons ago in primeval swamps has transformed human existence and made industrial and urban civilization possible. However, those roughly four cubic miles of fossil fuels every year are no longer the only, best, or even cheapest way to sustain and expand the global economy—whether or not we count fossil fuels’ hidden costs. Those “external” costs, paid not at the fuel pump or electric meter but in our taxes, wealth, and health, are not counted in the Reinventing Fire analysis, but are disturbingly large. Tens of billions of taxpayer dollars each year subsidize America’s fossil fuels, and even more flow to the systems that burn those fuels, distorting market choices by making the fuels look far cheaper than they really are. But the biggest hidden costs are economic and military.
8 Completely Awesome DIY Home Energy Projects Small-scale renewable energy is a must for a sustainable home – but converting your home to clean energy options can carry a huge initial price tag. We’ve scoured the web for some of the most innovative examples of homemade energy solutions to compile a collective list of DIY projects to make your home greener and more energy efficient without costing you a fortune. From solar water heaters and gadget chargers to homemade super-efficient refrigerators, you’ll find links (with instructions) to some of the best projects you can make at home…
'Fossil fuels are the new whale oil', says environmentalist Amory Lovins Amory B. Lovins is fond of referring to the Rocky Mountain Institute, where he serves as chairman and chief scientist, as a "think and do" tank, and it's clear that to Lovins the doing is every bit as important as the thinking. Hardly lacking in confidence or ambition, Lovins — in conjunction with his colleagues at the institute — has published Reinventing Fire, his step-by-step blueprint for how to transition to a renewable energy economy by mid-century. Human Footprint Interactive Geographers study the Earth and its physical features, inhabitants, and cultural phenomenon. They examine the physical and human characteristics of a region, ranging in scale from local to global, to explain an event or solve a problem. While many geographers have at least a bachelor’s degree in geography, many professionals, such as teachers, traffic consultants, and doctors, must also use geography in their jobs when examining specific challenges and solutions to issues.
A New Dawn 13th Jun 2013; 13:00 Listen to the audio (full recording including audience Q&A) Please right-click link and choose "Save Link As..." to download audio file onto your computer. There will an edited high-res video version of the talk available in a couple of weeks time, and if you subscribe to our channel on YouTube - you'll get automatically notified whenever there's a new video. RSA Thursdays Award-winning Hollywood film producer Simon Lewis’ life was turned upside down when a serious car accident left him severely injured. Peak External Photocurrent Quantum Efficiency Exceeding 100% via MEG in a Quantum Dot Solar Cell Multiple exciton generation (MEG) is a process that can occur in semiconductor nanocrystals, or quantum dots (QDs), whereby absorption of a photon bearing at least twice the bandgap energy produces two or more electron-hole pairs. Here, we report on photocurrent enhancement arising from MEG in lead selenide (PbSe) QD-based solar cells, as manifested by an external quantum efficiency (the spectrally resolved ratio of collected charge carriers to incident photons) that peaked at 114 ± 1% in the best device measured. The associated internal quantum efficiency (corrected for reflection and absorption losses) was 130%. We compare our results with transient absorption measurements of MEG in isolated PbSe QDs and find reasonable agreement.
Compressed Air Energy Storage from LightSail Could Run a Whole City Clean Power Published on November 10th, 2012 | by Tina Casey The company LightSail Energy started out a few years ago with a student’s modest idea for a compressed air scooter, and now it has just raised $37.3 million in private funding to bring utility scale, compressed air energy storage to the market. Google Fights to Save 3,054 Languages Will you be any worse off the moment humans cease to speak in Aragonese? How about Navajo or Ojibwa? Or Koro, a language only just discovered in a tiny corner of northeast India? No, you probably wouldn't, not in that moment.