Methane & Hydrate/Clathrate
Methane is a strong Greenhouse gas and human activity has increased methane in our atmosphere around 148% since the beginning of the industrial age. Some evidence indicates regional climate shift based on natural methane release, such as those that may be associated with the demise of the Anastasi or the Inca's. More research is needed on causal relationships. Evidence in the paleo record indicates that methane release concurrent with other contributing factors can have substantial impacts on the earth climate. It is estimated that a warmer world increases the risk of methane release
