Answer:
Today has the highest composition of greenhouse gases
Explanation:
Greenhouse gases have been linked to the rise in the temperature of the earth. they are believed to trap infrared ray close to the earth surface thereby causing a steady rise in the temperature of the earth, a phenomenon that has been widely called global warming.
The concentration of greenhouse gases in the atmosphere today ranks highest among other ages due to anthropogenic activities.
During the ice ages, the concentration of greenhouse gases was slightly higher (especially C02) due to natural feedback mechanisms and not due to anthropogenic activities.
