Image: bwrabbitgirl via flickr
Tim Radford, of the Climate News Network and who has covered climate change for almost 30 years, has recently written that spring is arriving earlier in the northern hemisphere. One sedge species in Greenland is now springing to growth 26 days earlier than it did a decade ago. And in the wintery United States, spring has arrived 22 days early this year in Washington, D.C. Researchers say the evidence from the plant world is consistent with the instrumental record. 2016 was the hottest year ever recorded and it was the third record-breaking year in a row. 16 of the hottest years ever recorded have happened in the 21st century. Do we know what that means for migrating birds in Canada? No. Researchers are working on it, but events seem to be far ahead of our knowledge. Once again, birds may be the proverbial 'canaries in the coal mines'.
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