This week on Just to Clarify, Dr. Pradeep Dhadhich, of The Energy and Resources Institute (TERI)lends us his experience and expertise. Dr. Dhadhich has a Ph.D. in energy systems engineering from the Indian Institute of Technology in Bombay, and he has over 25 years of experience in the field of energy. In particular, his expertise lies in process engineering, energy systems modelling, carbon dioxide abatement technologies, and in carbon dioxide capture and sequestration technologies. He has also worked on multiple occasions on reports for the Nobel prize-winning Intergovernmental Panel on Climate Change.
Dr. Dhadhich joins us to discuss a recent report titled “Target Atmospheric CO2: Where Should Humanity Aim?” The report was published in the The Open Atmospheric Science Journal, and it was written by a group of eminent scientists led by James Hansen, head of the NASA Goddard Institute for Space Studies. It argues that our target for atmospheric carbon dioxide should be 350 parts per million (ppm), rather than the original target of 450 ppm and our current level of 385 ppm. But how do scientists arrive at these projected targets? What are “fast feedback cycles” and “slow feedback cycles”, and how do they affect climate change?