Originally published on Tue December 16, 2014 1:23 pm
Dr. Kent Brantly considers himself a lucky man.
He was diagnosed with Ebola five months ago while working with Christian aid group Samaritan's Purse at a hospital in Liberia's capital, Monrovia. He became so sick that he thought he was going to "quit" breathing.
Originally published on Mon December 15, 2014 8:02 am
Journalist Paul Salopek is on a seven-year trek around the world, retracing early humans' first great migration, out of Africa.
We first spoke to him two years ago, when he was in Ethiopia, at the very beginning of his odyssey. Since then, we've reached him in Saudi Arabia, Jordan and Cyprus. Eventually, he plans to walk 21,000 miles in total — and make it all the way to Tierra del Fuego in South America.
On this last leg of his trip, he has faced all manner of obstacles — both natural and man-made.
Manyplants we eat today are a result of genetic modifications that would never occur in nature. Scientists have long been altering the genes of food crops, to boost food production and to make crops more pest-, drought- and cold-resistant.