HELPFUL – Page 40 – Our Fragile Earth

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Livestock account for 14.5% of man-made greenhouse gases. 40% is methane produced by cattle digestion. When added to their feed,[…]

The Archimedes, a Dutch renewable energy start-up has created an efficient, almost silent small rooftop wind turbine. It comprises three[…]

Finding a good way to store solar energy is essential. Battery storage tends to be expensive and impractical for remote[…]

An easy one-step technique could speed up commercialization of perovskite solar cells made from inexpensive, abundant materials. It promises to[…]

A new portable solar-powered device harnesses the sun’s energy generating steam efficiently at high temperatures and pressures even in hazy[…]

Most of us know that replacing an old incandescent lightbulb with new LED lighting saves energy and money. To mitigate[…]

A new material works like a luminescent solar concentrator and can be applied to textile fibers. Thus jackets, T-shirts. etc.[…]

The US could double or even quadruple the installed wind power capacity with little change to system-wide efficiency, and the[…]

Image: UBC Media Relations via Flickr Buildings are currently the source of about one-third of global greenhouse gas emissions. Wooden[…]

Photo: Dennis Schroeder, NREL Transparent glass panes using special thermochromic materials coated on glass or sandwiched between glass panels can[…]