Secret Cold War past of a Spanish tourist hotspot
Europe's most beautiful places
From Norwegian islands high above the Arctic Circle to forest-covered mountains in Romania, windswept sandy beaches in Wales and icy lakes in the Balkans, Europe is a spectacularly varied place.
US cities are losing 36 million trees a year. Here's why it matters
If you're looking for a reason to care about tree loss, the nation's latest heat wave might be it. Trees can lower summer daytime temperatures by as much as 10 degrees Fahrenheit, according to a recent study.
US cities are losing 36 million trees a year. Here's why it matters
How the 1% are preparing for the apocalypse
How rich people could help save the planet from the climate crisis
Rich people don't just have bigger bank balances and more lavish lifestyles than the rest of us -- they also have bigger carbon footprints.
How rich people could help save the planet from the climate crisis
'Concordski': The spectacular failure of the Soviets' Concorde rival
When the Soviet rival to Concorde made its first foreign appearance at the Paris Air Show in 1971, everyone was impressed. In the heated race to develop a supersonic passenger jet, it was the USSR who got off to a head start.