Global warming first came to wide public attention in the late 1980s. A crucial turning point was the presentation that climate scientist James Hansen made to Congress ...
Did the coronavirus leap from bat to man at a wildlife market or inside a scientific laboratory? We may never know for sure, but the lab-leak hypothesis is plausible. What are the implications?
Why are medical supplies in such short supply? This study explains the main reasons and presents three case studies: respiratory face masks, ventilators, and vaccines.