Can you figure out why Arctic ice melt has been so slow this summer? The graph below provides a very subtle hint.
The ice is melting slowly because :
- CO2 has made the ice thin, decayed and rotten
- CO2 has made the Arctic hot
- Weak solar activity has made the Arctic cold
- My living depends on government global warming grants, so I choose 1 and 2
- 1, 2, and 4
- All of the above