Dr. Richard Alley - As the Tide Rises: Decades of Watching Ice Sheets Change

Dr. Richard Alley presents “As the Tide Rises: Decades of Watching Ice Sheets Change.” Dr. Alley is an Evan Paugh University professor of geosciences at Penn State. He studies the great ice sheets to help predict future changes in climate and sea level, and has conducted field research in Antarctica, Greenland and Alaska. Dr. Alley participated in the United Nations Intergovernmental Panel on Climate Change and is a co-recipient of the 2007 Nobel Peace Prize. He has authored multiple books, including “Earth: The Operators Manual,” and hosted a special public television event based on the same title.

[@oldmanvollox7793]

tony heller videos even this group below can under stand

[@mac2105]

Alley is the shit! Thanks! I'm almost not depressed about AGW anymore ;-)

[@ankeralaphelt9991]

40% of the world's soils are degraded and we've over pumped our fossil aquifers everywhere. Since the Green Revolution started in the 50s and current soil erosion occurs at 1% per year w/ current industrial agricultural practices therefore we will be lucky to have 50 more harvests especially in light of the fact that the US has just 25 years of phosphate rock left. Of course we could continue to import phosphate from Morocco which has 72% of the world's readily accessible phosphate but warming in a few decades will dramatically cut into our yields anyway due to extreme weather and higher temps. It is well known that as temps inc. beyond 93F or 33C photorespiration kicks in and yield plummets. In a few decades our ports may also be underwater and this will certainly curtail imports of all commodities. A commodities market may not even exist in 30 years. Game over folks. Unless we move in mass back to the land and do the hard work of restoration of our forests, soils, and convert a very large area of our current soils to prairie we are SOL. Regenerate ecosystems or continue this insanity and die. You choose total collapse in the next few decades by rearranging the seats on the Titanic or come to erms with what we have done and choose wisely until it is far too late.