HELPFUL – Page 20 – Our Fragile Earth

BETTER BATTERIES FROM CRABS

A new biodegradable and recyclable battery made from crab shells and zinc can be recharged at least 1,000 times, making[…]

Beavers can help store precious water and rejuvenate land ravaged by climate change. Vast networks of beaver dams can slow[…]

Waste tire rubber can replace the coarse rocky material making up the bulk of concrete, using up some of the[…]

The world produces about 30 billion tons of concrete a year. Manufacturing cement produces an estimated 8% of global carbon[…]

One-third of Pakistan is underwater with over 1100 dead. Global warming is sharply increasing the likelihood of extreme rain in[…]

Disposal of unusable wind turbine blades is a problem. By 2050, over two million tons of blade material could be[…]

Photo: floating artificial leaf in the River Cam University of Cambridge Researchers have developed a new lightweight, flexible device using[…]

A Finnish sand battery can store green power for several months at a time in a low-cost, low impact way.[…]

New solar panels take on colorful hues while producing energy nearly as efficiently as traditional ones. These days some buildings[…]

Photo: the lake where I live Over the next 30 years the U.S. coast will experience a foot of sea[…]