<p>Efforts to make heritable changes to the human genome are fraught with uncertainty. Here’s what it would take to make the technique safe and acceptable.</p><a href="http://www.indiaenvironmentportal.org.in/files/file/CRISPR-babies.pdf"
Global economic growth during the past century has lifted many into lives of unprecedented luxury.The cost has been the degradation of vital ecosystems
All-or-nothing targets for global access to basic amenities such as drinking water and sanitation are outdated. The time has come for a more fluid approach. March 20, 2008
The 'Doomsday vault' buried in the Arctic ice will provide a backup for the world's seeds. But more needs to be done to safeguard food diversity.