OneNOAA Science Seminar Series: Rising Carbon Dioxide’s effects on Land and Ocean
Presenters: Sarah Cooley, Director, Ocean Acidification Program at Ocean Conservancy & David Moore, Associate Professor, University of Arizona
Event Type: Webinars and Virtual Events
When: 5 March 2019
Where: Online: 8:00-9:00am AKST, 12:00-1:00pm EST
Seminar 2 in the Series: From Science to Solutions: The State of the Carbon Cycle, the 2nd State of the Carbon Cycle Report (SOCCR2).
Rising carbon dioxide (CO2) has decreased seawater pH at long-term observing stations around the world, driving ocean acidification that has already affected some marine species and altered fundamental ecosystem processes. Further effects are likely. While atmospheric CO2 rises at approximately the same rate all over the globe, its non-climate effects on land vary depending on climate and dominant species. In terrestrial ecosystems, rising atmospheric CO2 concentrations are expected to increase plant photosynthesis, growth, and water-use efficiency, though these effects are reduced when nutrients, drought or other factors limit plant growth. Rising CO2 would likely change carbon storage and influence terrestrial hydrology and biogeochemical cycling, but concomitant effects on vegetation composition and nutrient feedbacks are challenging to predict, making decadal forecasts uncertain. Consequences of rising atmospheric CO2 are expected to include difficult-to-predict changes in the ecosystem services that terrestrial and ocean systems provide to humans. Continued persistence of uptake of carbon by the land and ocean is uncertain. Climate and environmental change create complex feedbacks to the carbon cycle and it is not clear how feedbacks modulate future effects of rising CO2 on carbon sinks. These are several mechanisms that could reduce future sink capacity.
About the Speaker:
Sarah Cooley is the Director of the Ocean Acidification Program at Ocean Conservancy, in Washington DC. Prior to 2014, she was a researcher and postdoctoral investigator at Woods Hole Oceanographic Institution (WHOI), as well as the ocean acidification scientist in the Ocean Carbon and Biogeochemistry Program Project Office.Sarah's guiding interests include ocean carbon cycling, science communication, and incorporating accurate ocean science knowledge into policy. In her position at Ocean Conservancy, Sarah works to educate and engage decision-makers and stakeholders from every political perspective at regional to international levels on ocean acidification, identifying ways that different groups can take concrete, stepwise action on the issue. In her work, Sarah combines science synthesis, strategic communications, political strategy and advocacy, and public advocacy. https://oceanconservancy.org/people/sarah-cooley
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