Kelp forests — luxuriant coastal ecosystems that are home to a wide variety of marine biodiversity — are being wiped out from Tasmania to California, replaced by sea urchin barrens that are nearly devoid of life.

By Alastair Bland

Biodiversity

Urban Refuge: How Cities Can Help Rebuild Declining Bee Populations

With bees threatened by habitat loss, pesticides, and climate change, researchers are finding that planting flower patches in urban gardens and green spaces can help restore these essential pollinators. The results are already being seen in cities from Chicago to London to Melbourne.

By Janet Marinelli

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Author Robert Jay Lifton has probed the psyches of barbaric Nazi doctors and Hiroshima survivors. Now, he is focusing on how people respond to the mounting evidence of climate change and is finding some reasons for hope. 

By Diane Toomey

A government soldier on patrol in a former area of intense fighting in Guaviare in southern Colombia. 

Biodiversity

With New Peace, Colombia Finds Hope for Saving Its Wild Lands

After a half-century of conflict, Colombia is regaining control of vast biologically rich areas that had been havens for rebel groups. Now, scientists are racing to create plans for conservation and sustainable development to head off an influx of illegal loggers and miners.  

 

By Lisa Palmer

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