Climatologist warn of a tipping point when global temperature trigger catastrophic events and rise levels risemore than 50 feets. What would cause the sea level rise so greatly and how much warmer does the world need to get for this tripping point to happen 1. 2. 3. Melting of Greenland ice sheet 4. thermal expansion of oceans Which of the above is/are correct?

Climatologist warn of a tipping point when global temperature trigger

1.	Climatologist warn of a tipping point when global temperature trigger catastrophic events and rise levels risemore than 50 feets. What would cause the sea level rise so greatly and how much warmer does the world need to get for this tripping point to happen 1. 2. 3. Melting of Greenland ice sheet 4. thermal expansion of oceans Which of the above is/are correct?
A.	1 and 3
B.	1 and 3
C.	2 and 3
D.	2 and 4
Answer» D. 2 and 4