Energy

New “tandem” solar cell breaks world record
A new tandem solar cell containing layers of silicon and perovskite has demonstrated an unprecedented efficiency of 33.7%.
These 4 charts show the unstoppable growth of solar
Solar is growing fast enough to displace fossil fuels from the entire global economy before 2050, but infrastructure needs to keep up.
Saving the ozone layer avoided 2.5 degrees of global warming
These farmers want to salt the earth — and grow crops in it
Robot penguins are exploring mysterious ocean currents
The bold plan to bring back the American chestnut
Scientists are vacuuming DNA from the air to study biodiversity
Farmers in England begin massive DIY “rewilding” effort
A startup is stuffing teddy bears with recycled cigarette butts
Emergency sea otters needed to save California’s kelp forests
Tree DNA convicts a poacher for the first time in federal court
Ancient frozen viruses hold clues to life and climate