A Few Simple Graphics About CO2

Need to understand the carbon cycle? Surface and space-based observations, field experiments, and models all contribute to our evolving understanding of the ways that Earth’s many systems absorb and release carbon.

major-anthropogenic-carbon-sources-natural-carbon-sinks

Over the past 50 years, a growing wealth of long-term atmosphere, ocean, and ecosystem observations has provided essential insights into how climate change affects the ways that carbon moves through Earth’s environment, yet many fundamental questions remain unanswered. Perhaps the most challenging and societally relevant question is whether the rate at which the land and ocean can sequester carbon will continue to keep pace with rising carbon dioxide emissions.

Emissions of carbon dioxide (CO2) and methane (CH4) stemming from human activities are rapidly and dramatically altering Earth’s climate. Warmer temperatures drive longer and more destructive fire seasons, shifting precipitation patterns cause flooding in some areas and drought in others, and ocean acidification threatens marine life across the globe.

 

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