It was a shallow one-liner that repeated a platitude in a dismissive way. That makes it an unsubstantive post and we're trying to avoid those here. Would you mind reviewing the site guidelines and taking their spirit more to heart when posting? Your comment broke at least three of them:

"Please don't post shallow dismissals [...] A good critical comment teaches us something."

"Please respond to the strongest plausible interpretation of what someone says, not a weaker one that's easier to criticize."

"Comments should get more thoughtful and substantive, not less, as a topic gets more divisive."

https://news.ycombinator.com/newsguidelines.html

A fair amount of greenhouse gas emissions are from growing and transporting food. "Just stop" means that a fair amount of our food production stops. The problem with +4C is a lot of people dying; killing them earlier by starvation is not a solution.