The climate system is a complex of thermodynamic energy transfers, moving between the Earth’s atmosphere and oceans. Our local experience of weather—hot summers, breezy autumns, monsoon rains, tropical cyclones, droughts, floods, blizzards and mudslides—is an expression of the way climatic forces play out over time.
As more thermodynamic energy gets trapped in the Earth’s atmosphere and oceans, the excess destabilizes patterns of energy transfer that sustain vital ecosystems. Those ecosystems sustain life as we know it. When the global climate system’s dominant patterns are destabilized, vast and complex new security risks emerge.