The future of sea level rise may be written into the walls of coastal Spanish caves.
Mineral “bathtub rings” deposited inside the limestone Artà Caves on the Balearic island of Mallorca show how high seas rose during the Pliocene Epoch — a time when Earth was about as warm as it’s expected to get by 2100. Those mineral deposits suggest the planet’s seas were around 16 meters higher on average than they are today, researchers report August 30 in Nature.
Continue reading Ancient crystal growths in caves reveal seas rose 16 meters in a warmer world →
Una plaga de mosca blanca cayó hace dos décadas en los campos de chilhuacle amarillo, rojo y púrpura de la familia Martínez. El chilhuacle es el chile estrella en varias versiones del plato insignia de Oaxaca –el mole, claro–, y por mucho tiempo los cocineros habían estado pagando altos precios por las notas ahumadas y cítricas de este chile. Pero su costo estaba a punto de subir todavía más. Continue reading Al rescate del chile más emblemático de México →
A plague of whiteflies descended on the Martínez family’s fields of yellow, red, and deep purple chilhuacle in southern Mexico two decades ago. Chilhuacle is the star chilli in several versions of Oaxaca’s signature dish – mole – and cooks had long paid a premium for the chilli’s unique smoke and citrus flavours. But its cost was about to climb higher.
The Martínez family and the few other growers lost much of their chilhuacle crops in 1997. That year marked the start of a slow decline in chilhuacle production. Despite the chilli’s high market price, many growers stopped planting it. Continue reading Saving Mexico’s most totemic chilli →
Copenhagen’s public electric bikes are kind of a pain to get started: they are heavy and their coaster brake prevents riders from kicking the pedal around to a convenient starting place. The business side of the operation has also had a rough start, marked by delivery delays, bankruptcy, and restructuring. Once you do manage to push the bikes to a start, however, their 250-W electric motors kick in and they are a breeze to power around Copenhagen’s well-marked and protected bike lanes.
It may not have been electricity, but something has also boosted the Copenhagen bike-sharing program: Usage grew from just 169,000 rides in 2015 to 933,000 last year and the program, called Bycyklen, is on track for similar usage this year. That might be just enough to keep Bycyklen from falling over. Continue reading Danish Electric Bike-Sharing Dodges Failure →