Grief at the absence of a loved one is happiness compared to life with a person one hates.
Logic is the technique by which we add conviction to truth.
On a soap happiness never lasts for very long!
If you are interested enough in the climate crisis to read this post, you probably know that 2 degrees Centigrade of warming (or 3.6 degrees Fahrenheit) is the widely acknowledged threshold for "dangerous" climate change.