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"We depend on the natural world... for our very sanity"

"We are dependent on the natural world for the very air we breathe and every particle of food we eat. Many people, including me, would say we are dependent on it for our very sanity." — Sir David Attenborough

Waking the "Sleeping Giants" of abrupt change

The longer global warming continues, the greater the risk of "waking the sleeping giants"—major feedbacks such as ice sheet collapse, methane "burps," or ecosystem collapse—that could ignite abrupt or runaway warming beyond our control.

Pteropods: the "canaries in the coal mine" of climate change.

As Earth's oceans warm and become more acidic, ocean creatures including pteropods are undergoing severe stress. They are harbingers of change. It's possible by 2050 that they might not be able to make a shell any more and if we lose these organisms the impact on the food chain will be catastrophic.