The atmospheric concentration of the greenhouse gas CO2 will soon reach
a level higher than anything experienced in the last 250,000 years and
cause a noticeable change in the Northwest climate, according to Alan Hamlet,
University of Washington.
That change in climate will have a significant impact on flows in the
Columbia River and on the way the Columbia River hydropower system will
operate in the third millennium.
Hamlet spoke about the implications of global warming on …