Environmental News Network - Summer Droughts in Northern Hemisphere Increasingly Likely as Seasonal Streamflows Change enn.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from enn.com Daily Mail and Mail on Sunday newspapers.
Declining snowfall is changing the seasonal patterns of streamflow throughout the Northern hemisphere boosting chances of water shortages in the summer, scientists have found.
Bob McDonald's blog: Practical ornithopters that fly like hummingbirds or dragonflies have been a long-time dream. A new electrically powered flapping wing system could make insect-like flying machines a reality.