It can be difficult - mostly because it's in the interest of big business and the super-rich to keep everyone else busy arguing over the small fry.
The top 10% of the world's earners need to do their bit - they can slash emissions quicker, more easily, and more affectively than everyone else. If they don't, then reports predict that we still exceed 1.5, even if everyone else does everything they can. The rich are going to be the least affected in the coming years, when they are the most to blame.