Their is no way to rationalize the fact that the Earth was much hotter in the past with or without higher levels of CO2 . Changes in sea level , temperature , rainfall , frequency of storms etc. happen with regularity and sometimes follow a pattern and sometimes do not .
The global green elites are hoping they will be able to convince more intelligent people like Swami to buy into their doomsday story and support plans to make themselves richer . We can only hope in the fullness of time when their doomsday predictions fail to come true that common sense and pragmatistism will prevail .