University World News: Every forested continent on Earth has suffered widespread droughts over the past 30 years that have killed tens of thousands of trees. Their scale, duration and almost coordinated nature across different continents is causing extreme alarm in ecological circles.
Derek Eamus, a lecturer at the University of Technology in Sydney, says Australia faced a seven-year eastern seaboard drought in the first decade of the 21st century while most of Western Europe was in drought in 2003. There the human...