Climate

COSTA RICA POSTCARD: NEW FORESTS EMERGE FROM THE TREES

COSTA RICA POSTCARD: NEW FORESTS EMERGE FROM THE TREES

I am tramping in dark woods, though it’s a sunny day here in Costa Rica. A man’s voice calls out “ocho,” “diez,” and a string of Spanish words. I know the speaker is Bernal, a local forester, though I can barely see him through the dense vines and the stems of young trees. He is calling measurements of red-marked trees to another forester, Jeanette. She stands braced on both feet to write his numbers on her clipboard.

POSTCARD FROM STOCKHOLM: NOBEL SURPRISES

POSTCARD FROM STOCKHOLM: NOBEL SURPRISES

Arriving in Stockholm at night in early December, I was struck by the rows of lights in the windows of the lovely old buildings. It was Advent season, so most windows had sets of white candles – traditional symbols of hope in mid-winter. Gleaming snowy streets wound like trails through dark town. Stockholm is laced with canals whose inky edges were fringed with brightly lit white boats.

ACIDIFYING OCEANS REMAKE EARTH AND OUR FOOD SUPPLY

ACIDIFYING OCEANS REMAKE EARTH AND OUR FOOD SUPPLY

What’s happening in the world’s oceans? To the known problems of overfishing, pollution, and invasive organisms borne on ship hulls, we can add the lesser-known alterations caused by climate change.

What scientists had to say at the annual meeting of the American Association for the Advancement of Science in Boston last month was shocking: Atmospheric climate change is altering the chemistry of the ocean and, in the process, the marine life and seafood we depend on. These changes are very likely unstoppable.