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Environmental News Network -- Know Your Environment
In late January 2022, Lake Erie nearly froze over entirely, with ice cover growing well beyond the seasonal average to reach 94 percent. By February 3, the ice cover had dropped to about 62 percent before rising again to 90 percent by February 5.
Air temperatures on Earth have been rising since the Industrial Revolution. While natural variability plays some part, the preponderance of evidence indicates that human activities—particularly emissions of heat-trapping greenhouse gases—are mostly responsible for making our planet warmer.
Many North American migratory birds are shrinking in size as temperatures have warmed over the past 40 years.
A new study found that measuring the time it takes for a radar pulse to travel from a satellite to the sea surface and back again can reveal the thickness of river ice and dates when it is safe to travel on ice roads and bridges in arctic regions.
A new online tool reveals how more than 200 planned dams worldwide will alter river temperatures, potentially rendering waters too hot or too cold for native fish.
Understanding when and where trees die in vast tropical forests is a challenging first step toward understanding carbon dynamics and climate change.
