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Spain has been investing heavily in wind farms and, more controversially, nuclear, with stark results: last month it generated 69 percent of its electricity from plants that did not emit carbon dioxide. It has realistic prospects to reach 87 percent next year through planned investments in wind and Read More...
Hydropower has a great advantage over solar and wind energy: it is reliable, typically consistent (unless severe drought dries out rivers and lakes) and easily predictable. What if it could be made more ubiquitous? Portland startup Lucid Energy has imagined harnessing the energy generated by Read More...
If your money could talk, what would you like it to say? How about that it’s proudly contributing to support or influence business and public policy to create a greener, more sustainable world? Here are five tips to simply point you in the right direction, or act as reminders of what you already Read More...
Cement, the glue that allows concrete to harden, is responsible for 5% of global greenhouse gas emissions. Because it requires limestone to be heated at very high temperatures, cement production emits about 800 kilos of carbon for every 1,000 kilos of cement it yields. Ferrock aims to make cement Read More...
The United States has one of the world’s largest pay gaps, with chief executives earning nearly 300 times what the average worker makes. Despite new regulation embedded in the financial overhaul that Congress passed in 2010, publicly held companies have yet to disclose the ratio of CEO pay to the Read More...
According to the United Nations, 1.5 billion people around the world have to make do either with very poor quality light or no light at all. There are 1.3 billion who rely on kerosene lamps which emit toxic fumes, causing respiratory illnesses and killing an estimated 1.5 million people each year. Read More...
In Peru, farms struggle with polluted soil and water that leaches heavy metals like lead and arsenic into vegetables. Hydroponics with filtered water is one answer. UTEC, Lima's University of Engineering and Technology, went to work. It put up a billboard that collects and purifies water from the Read More...
Anger can be a very good thing. Like when sheer outrage led human rights activist and Nobel Peace Prize Laureate Kailash Satyarthi to free 83,000 children from slavery. “For centuries, we were taught anger is bad. Everyone taught us to control and suppress our anger. But I ask ‘why’? Why Read More...
Electric cars hooked to renewable sources of energy like roofsolar are a major component of the kind of carbon-free infrastructure required to keep temperatures below the critical ceiling as defined by the International Panel on Climate Change. The good news is that the market for electric cars has Read More...
As the cost of solar panels keeps dropping and the market picks up, supported in some places by government mandates such as the Renewable Portfolio Standards in 29 states, incorporating intermittent power flow from renewables emerges as a major issue for grid operators. Until batteries come online Read More...