(Relocation to Auditorium) Thursday May 10, 2018 (Discussion – Climate Feedback Mechanisms; Melting of the Cryosphere and Sea-Level Rise) (Relocation to Auditorium)

The Launch Pad Thursday, 5/10/18 1/1 No Launch Pad Today!

Announcements Earth/Space classes should be back in our classroom tomorrow! Please check the signs in the halls!

Remediation for Quiz 17 runs through next Wednesday! Announcements Remediation for Quiz 17 runs through next Wednesday!

QUIZ 17 F2 5/7 S2 5/8 F3 5/9 N/A Assignment Next Tuesday Summative or Formative # Date Issued Gone Missing Day Last Day Accepted eResearch Paper - Climate F2 5/7 Next Tuesday QUIZ 17 S2 5/8 Next Wednesday WS - Human Impact on Global Climate; Energy Consumption; The Atmospheric Response F3 5/9 N/A Hold for eResearch Paper

Climate Change Part 2

Climate-Feedback Mechanisms So far the climate-feedback mechanisms we discussed have magnified the temperature rise caused by the buildup of carbon dioxide. Because these effects reinforce the initial change, they are called positive-feedback mechanisms. However, other effects must be classified as negative-feedback mechanisms because they produce results that are just the opposite of the initial change and tend to offset it .

Springtime breakup of ice near Antarctica Springtime breakup of ice near Antarctica. The inset shows a likely feedback loop.

Some Possible Consequences of Global Warming Global warming can alter the distribution of the world’s water resources and can effect the productivity of agricultural regions. It can cause a rise in global mean sea level. By changing weather patterns, global warming could cause a higher frequency and intensity of hurricanes. It can cause shifts in the paths of large-scale cyclonic storms. Global warming could also cause changes in frequency and intensity of heat waves and droughts.

Global Sea-Level Rise

The Effects of Sea-Level Changes on Gently-Sloping Shorelines

The Effects of Sea-Level Changes on Steeply-Sloping Shorelines

Sea Ice Melt

Sea Ice Melt Figure 20.26B

Shrinking and Disappearing Lakes

Use today’s notes on the website (5/10) Worksheet Use today’s notes on the website (5/10) Climate Feedback Mechanisms; Melting of the Cryosphere and Sea-Level Rise