What is the contribution of burning of fossil fuel to global warming?
It has caused increase in carbon dioxide in the atmosphere. Although the terrestrial biosphere (plants, trees and soil) and the oceans have assisted by absorbing roughly half of the emissions, the atmospheric carbon content has increased rapidlya thousand times faster than the natural cycles of climate and carbonand significantly by more than 35%, a magnitude equivalent to the natural variations between an ice age and an interglacial. There is a well-founded concern that in a warmer world, the terrestrial biosphere and oceans may become the sources rather than sinks for carbon. What are your views on the report of the IPCC saying that the concentration of greenhouse gases far exceeds the levels of the last 650k years? The conclusions of the IPCC tend to be conservative. They are based on an evaluation of thousands of peer-reviewed scientific publications and have been agreed upon by the politically appointed delegates of 113 nations, including whose governments are climate sceptic. Ove