Immediately stopping all greenhouse gas emissions would kill a lot of people quickly by breaking supply and production chains for pretty much everything. So that is not an option.
It would also result in a near immediate (weeks) increase in global average temperature due to the reduction in aerosol masking.
People like to fixate on a simple correction that they can work toward (more often just talk about), but the situation is not simple. And I don't think people should be making statements that suggest there is a simple solution at this point.
i don't think anyone ever argued in favor of ceasing the usage of all greenhouse emitting fuel sources all at once. However we can't even agree to gradually phasing them out in a realistic timeline, see Kyoto Protocol
