Scientific Evidence Supporting the Progression of Climate Change–Induced Drought through History
Biplab Sadhukhan, R. K. Srivastava, Arun Chakraborty, Rutuparna Panda
Abstract
Climate has varied during all timescales of Earth's history. Over the millions of years, Earth has swung between very cold conditions (ice age) known as the glacial periods to very warm conditions, where the annual mean temperatures rises above 10°C in polar regions, known as the interglacial period. The climate fluctuations of Earth's history suggest that no year is the same as the previous one. Climate change is observed through different atmospheric indicators, including precipitation, evaporation, temperature, solar irradiance, albedo, and changes in the greenhouse gases, and their effect on different crops, human beings, and animal behavior were reported. Also oceanic indicators like ocean heat content, sea level rise, wind waves, ocean acidification, and frequency of tropical cyclones give much information about the ongoing climate changes.