NASA Evidence Shows Unprecedented Rate of Modern Climate Change
By
doener
Toasted golden, schmeared with insight. Top of the rack.
Summary
NASA presents scientific evidence showing that Earth's current warming trend is unprecedented in its rate of change compared to natural climate cycles over the last 800,000 years. While Earth's climate has naturally fluctuated between ice ages and warmer periods due to orbital variations, the current warming is clearly the result of human activities since the mid-20th century, with the rate of change being unprecedented over millennia.
Key quotes
· 4 pulledThe rate of change since the mid-20th century is unprecedented over millennia.
Earth's climate has changed throughout history. Just in the last 800,000 years, there have been eight cycles of ice ages and warmer periods.
Most of these climate changes are attributed to very small variations in Earth's orbit that change the amount of solar energy our planet receives.
The current warming trend is different because it is clearly the result of human activities.
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