Jim Hansen: Negative CO2 Emissions
Young People’s Burden: Requirement of Negative CO2 Emissions by James Hansen July 18th, 2017 http://csas.ei.columbia.edu/2017/07/18/young-peoples-burden-requirement-of-negative-co2-emissions Jim Hansen: The Requirement for Negative CO2 Emissions Jim Hansen: The Requirement for Negative CO2 Emissions Jim Hansen on YouTube Climate Science, Awareness and Solutions https://www.youtube.com/watch?v=Mm57xlazv4I