How much stuff will you give and receive this holiday season? Add it to the growing pile — the 30-trillion-tonne pile. That’s how much technology and goods humans have produced, according to a study by an international team led by England’s University of Leicester. It adds up to more than all living matter on the planet, estimated at around four trillion tons.
How much stuff will you give and receive this holiday season? Add it to the…
Salmon have been swimming in Pacific Northwest waters for at least seven million years, as indicated by fossils of large saber-tooth salmon found in the area. During that time, they’ve been a key species in intricate, interconnected coastal ecosystems, bringing nitrogen and other nutrients from the ocean and up streams and rivers to spawning grounds, feeding whales, bears and eagles and fertilizing the magnificent coastal rainforests along the way.
Salmon have been swimming in Pacific Northwest waters for at least seven million years, as…
Sharks are safer across the Caribbean Sea, with the announcement of four new shark sanctuaries…
The Sustainable Development Solutions Network (SDSNedu) aims to provide high-quality, massive open online education in…