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Texas Climate Projections

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Presentation on theme: "Texas Climate Projections"— Presentation transcript:

1 Texas Climate Projections
John W. Nielsen-Gammon Texas State Climatologist Department of Atmospheric Sciences

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12 Drought Projection Considerations
SPI neglects temperature, PDSI overemphasizes it Increased CO2 improves plant water use efficiency Increased CO2 increases plant biomass Increased efficiency leads to higher temperatures Responses to CO2 differ across species Global climate models that include CO2 fertilization project decreased soil moisture Changes in topsoil moisture more severe than deep soil moisture Greater paleoglobal plant growth from higher temperatures and CO2

13 Harvey: What If?

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24 Email: n-g@tamu.edu Web: climatexas.tamu.edu Social media: climatexas

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