Word: environmentalism
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In recent years, the curative promises of embryonic stem cells and therapeutic cloning methods have outshone other research, but these techniques are still too new and unproven to yield safe and effective treatments for patients. Atala's strategy has been to use already existing cells to create more practical solutions...
Creating a working organ hinges on keeping those first few cells alive, which has proven to be the biggest challenge for Atala's team. Each cell - whether from the bladder, skin, cartilage, or heart - prefers a different environment to grow, made up of unique cocktails of growth factors, enzymes, proteins...
...TIME, we've long had a commitment to covering environmental issues. The Environment section of the magazine was first created back in 1969 - long before the term global warming even existed. We published our first cover on that subject in 1987, and - in a break with tradition - named Endangered Earth our Planet of the Year in 1988. Our latest entry in this distinguished line of journalism was TIME International's double issue last month on Heroes of the Environment. To mark that issue, I was delighted to join my TIME colleagues and more than 400 distinguished guests, including TIME Warner...
The U.S. is largely responsible for the state of the world’s environment. Global warming is caused by the greenhouse effect, or the retention of “greenhouse gases,” like carbon dioxide, nitrous oxide, and methane, within the atmosphere. In 1990, the year that...
Institute of Politics Director James A. S. Leach speaks quietly and slowly. But at moments of humor, he leans forward impulsively, makes his hands into fists, and shows an impish grin.It was at a serious moment, though, that Leach, who served 15 consecutive terms in the House of Representatives, said...