Extreme climate changes, both wet and dry, corresponded with the population decline of a Maya settlement in central America according to new research out of McGill University that looked at indicators left behind by ancient human waste.
The influx of people taking an interest in the outdoors resulted in a significant increase in the amount of data collected about birds that can be used by scientists and environmentalists for monitoring bird populations and habitats.
A heat wave is expected to kill all juvenile chinook salmon in California's Sacramento River, wildlife officials say. Meanwhile, climate change and extreme heat waves are hitting Canada’s salmon, too, on both coasts. We look at how bad it is here and what can be done to save our salmon.
As Earth warms, Canada is facing not only more frequent heat waves, but higher nighttime temperatures. That combination is potentially deadly.