Legendary scientist who predicted climate change effects dead at 87

In 1975, geologist Wallace Broecker penned a scientific paper warning about the still little-discussed concept of "global warming." Forty-four years later Broecker has died at 87, but not before proving himself a legendary earth scientist, repeatedly underscoring that amassing carbon dioxide in the atmosphere has stoked relentless climate change.

Ancient air trapped in ice cores proves, indisputably, that Earth's carbon dioxide (CO2) concentrations are the highest they've been in at least 800,000 years — though other measures show that CO2 concentrations are now likely the highest they've been in 15 million years. The planet is responding: 18 of the last 19 years have been the warmest on record.  Read more...

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