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Capstone, Future of climate attribution science: extending beyond…
Capstone
Science
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Merchants of Doubt
Acclaimed scientists trying to disprove climate change, potentially for economic reasons
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Meteorologist
Climate change also has impacts on more regular events, such as sports competitions, allergy seasons durations, rainfall
Climate attribution
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Reliability of observations of extreme weather events depends on length of time observed (eg hurricanes only observed for 40 years or so so the reliability of observed hurricanes not as high as temperature which has been observed since 1800s)
Definition of an extreme weather event utilized in climate attribution studies : 1) major impact on people, 2) enough usable weather and historic data, 3) model output that can describe the event
Climate Is what you affect, weather Is what you get. question of changing risk; eg not how did CO2 cause, rather how much did CO2 change weather (since weather Is Inevitable)
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Communication to prevent harm to people, both physically and economically (i.e. power outages --> businesses shut down)
Dr. Legg
Modeling climate, seismic ocean thermometry
Seismic Ocean Thermometry: Using travel time from sound waves from earthquakes on the sea floor to measure the temperature of bodies of water. Addresses some of the limitations of Argo (i.e. going below 2000 meters, more reliable, less expensive)
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Build computer model of climate system to make predictions about future of climate change. Climate model Includes atmosphere, ocean, sea-ice, land-surface, Ice sheets/glaciers
limitations: Increase model grid resolution and complexity, Improve representation of small scale processes
Oceanographer
EM radiation can't penetrate past first few thousand meters of ocean so we measure ocean temperatures with Argo floats
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Policy
IPCC
The Intergovernmental Panel on Climate Change (IPCC) is a part of the United Nations that provides an assessment of climate change for the development of climate policy.
The purpose of the IPCC assessment reports is to help influence the development of climate policy (ex. reduce global warming) internationally through scientific evidence.
Figure SPM. 1 compares the differences in global temperatures over time (especially in the last 170 years) from simulated human and natural influences and only simulated natural influences (like solar and volcanic factors).
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Future of climate attribution science: extending beyond examining effects of anthropogenic climate change on extreme weather events to daily temperatures (currently in prototype, looking to release in some capacity by July)
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