The correct answer is option 3: Flaring.

Methane, a greenhouse gas, is indeed a potent contributor to global warming. To reduce its overall impact and curb global warming, there is a process known as flaring. Flaring involves burning or combusting methane gas, which converts it into carbon dioxide and water vapor. Carbon dioxide has a weaker greenhouse effect compared to methane, so by converting methane to carbon dioxide, the overall warming potential is reduced.

Let`s briefly dissect the other options:

Option 1: Blocking - This is not the correct process. There is no process called blocking in relation to the conversion of methane to carbon dioxide.

Option 2: Ceiling - This is not the correct process. Ceiling does not describe the conversion of methane to carbon dioxide.

Option 4: Stooping - This is not the correct process. Stooping is a term unrelated to the conversion of methane to carbon dioxide.

In conclusion, the correct term for the process of converting methane to carbon dioxide to mitigate its impact on global warming is flaring.