Currently, an increase in the atmospheric content of CO2 may be triggering a shift in the climate again.
"The Earth has not had such a high CO2 content in the atmosphere since more than 15 million years ago, when the climate was very warm and alligators lived in England," he said.
"This could mean that the climate might not just slowly gets warmer over the next 1000 years, but that major climate changes theoretically could happen within a few decades", Ditlevsen added, but stressed that his research only deals with investigating the climate of the past and not predictions of the future climate.
The results have just been published in Geophysical Research Letters.
Source-ANI