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TRANSCRIPT
Climate Change NASA’s Perspective
Amaya M. Davis, PhDSolar System Ambassador
- Climate Change is a FACT
- Causes & Effects
- Is There Hope?
Objectives
- Global Temperature Rises- Warming Oceans- Shrinking Ice Sheets- Glacial Retreat- Decrease Snow Cover- Sea Level Rise- Declining Artic Sea Ice- Extreme Events- Ocean Acidification
Climate Change is a FACT
Increased Temperature
• Greenland lost an average of 281 billion tons of ice per year between 1993 and 2016
• Antarctica lost about 119 billion tons during the same time period
• September Arctic sea ice is now declining at a rate of 12.8 percent per decade
• In 2018, the Arctic minimum sea ice covered an area of 4.15 million square kilometers,vs 6.73 million square kilometers
Melting Ice Caps
Why it Happens?
• Is it the Earth’s Orbit?
• Is it the Sun?
• Is it Volcanoes?
• Is it all Three of These Things Combined?
• Is It Deforestation?
• Or Ozone Pollution?
• Or Aerosol Pollution?
• So what causes Global Warming?
Causes: Natural or Manmade?Missions that observe CO2
Atmospheric Infrared Sounder (AIRS)Orbiting Carbon Observatory (OCO-2)
Future Effects
- Can we reverse Global Warming?
NO- Can we stop Climate Change?
NO- What we can do is slow it down…. And learn to adapt.
Is There Hope?
- Mitigation- Adaptation- Energy Innovations
Solutions
Geo-engineering
Aerosol Injection Removing CO2
Radiation Management Renewable Sources
Scientific Innovations for the Future
Ultimately: Consume Less