For hundreds of millions of years, Earth’s climate has warmed and cooled with natural fluctuations in the level of carbon dioxide (CO₂) in the atmosphere. Over the past century, humans have pushed CO₂ levels to their highest in 2 million years—overtaking natural emissions—mostly by burning fossil fuels, causing ongoing global warming that may make parts of the globe uninhabitable.
Click here for original story, How plate tectonics, mountains and deep-sea sediments have maintained Earth’s ‘Goldilocks’ climate
Source: Phys.org