Advancesinthescienceandobservationofclimatechangeareprovidingaclearerunderstandingoftheinherentva... more Advancesinthescienceandobservationofclimatechangeareprovidingaclearerunderstandingoftheinherentvariabilityof Earth’s climate system and its likely response to human and natural influences. The implications of climate change for the environmentandsocietywilldependnotonlyontheresponseoftheEarthsystemtochangesinradiativeforcings,butalsoon how humankind responds through changes in technology, economies, lifestyle and policy. Extensive uncertainties exist in future forcings of and responses to climate change, necessitating the use of scenarios of the future to explore the potential consequences ofdifferent response options. To date,suchscenarioshave notadequately examined crucialpossibilities,such as climate change mitigation and adaptation, and have relied on research processes that slowed the exchange of information amongphysical,biologicalandsocialscientists.Herewedescribeanewprocessforcreatingplausiblescenariostoinvestigate some of the most challenging and important questions about climate change confronting the global community.
Economy-wide emissions drop 43 to 48% below 2005 levels by 2035 with accelerated clean energy dep... more Economy-wide emissions drop 43 to 48% below 2005 levels by 2035 with accelerated clean energy deployment
Proceedings of the National Academy of Sciences of the United States of America, Jun 27, 2017
A number of analyses, meta-analyses, and assessments, including those performed by the Intergover... more A number of analyses, meta-analyses, and assessments, including those performed by the Intergovernmental Panel on Climate Change, the National Oceanic and Atmospheric Administration, the National Renewable Energy Laboratory, and the International Energy Agency, have concluded that deployment of a diverse portfolio of clean energy technologies makes a transition to a low-carbon-emission energy system both more feasible and less costly than other pathways. In contrast, Jacobson et al. [Jacobson MZ, Delucchi MA, Cameron MA, Frew BA (2015) Proc Natl Acad Sci USA 112(49):15060-15065] argue that it is feasible to provide "low-cost solutions to the grid reliability problem with 100% penetration of WWS [wind, water and solar power] across all energy sectors in the continental United States between 2050 and 2055", with only electricity and hydrogen as energy carriers. In this paper, we evaluate that study and find significant shortcomings in the analysis. In particular, we point ou...
Advancesinthescienceandobservationofclimatechangeareprovidingaclearerunderstandingoftheinherentva... more Advancesinthescienceandobservationofclimatechangeareprovidingaclearerunderstandingoftheinherentvariabilityof Earth’s climate system and its likely response to human and natural influences. The implications of climate change for the environmentandsocietywilldependnotonlyontheresponseoftheEarthsystemtochangesinradiativeforcings,butalsoon how humankind responds through changes in technology, economies, lifestyle and policy. Extensive uncertainties exist in future forcings of and responses to climate change, necessitating the use of scenarios of the future to explore the potential consequences ofdifferent response options. To date,suchscenarioshave notadequately examined crucialpossibilities,such as climate change mitigation and adaptation, and have relied on research processes that slowed the exchange of information amongphysical,biologicalandsocialscientists.Herewedescribeanewprocessforcreatingplausiblescenariostoinvestigate some of the most challenging and important questions about climate change confronting the global community.
Economy-wide emissions drop 43 to 48% below 2005 levels by 2035 with accelerated clean energy dep... more Economy-wide emissions drop 43 to 48% below 2005 levels by 2035 with accelerated clean energy deployment
Proceedings of the National Academy of Sciences of the United States of America, Jun 27, 2017
A number of analyses, meta-analyses, and assessments, including those performed by the Intergover... more A number of analyses, meta-analyses, and assessments, including those performed by the Intergovernmental Panel on Climate Change, the National Oceanic and Atmospheric Administration, the National Renewable Energy Laboratory, and the International Energy Agency, have concluded that deployment of a diverse portfolio of clean energy technologies makes a transition to a low-carbon-emission energy system both more feasible and less costly than other pathways. In contrast, Jacobson et al. [Jacobson MZ, Delucchi MA, Cameron MA, Frew BA (2015) Proc Natl Acad Sci USA 112(49):15060-15065] argue that it is feasible to provide "low-cost solutions to the grid reliability problem with 100% penetration of WWS [wind, water and solar power] across all energy sectors in the continental United States between 2050 and 2055", with only electricity and hydrogen as energy carriers. In this paper, we evaluate that study and find significant shortcomings in the analysis. In particular, we point ou...
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Papers by John Weyant