We aren't actively and directly melting large quantities of ice. It's a second-order effect of increased atmospheric C02.
One option is to allow it to vary but not as a first-order effect. Another option is to simply not let it vary to keep the model simple.
We aren't actively and directly melting large quantities of ice. It's a second-order effect of increased atmospheric C02.
One option is to allow it to vary but not as a first-order effect. Another option is to simply not let it vary to keep the model simple.