The annual inventory report [PDF] of New Zealand's greenhouse gas emissions has been released, showing that emissions fell by 2.7 million tons in 2020:
Of course, there's an obvious reason for this: lockdown. So its not a permanent change. Still, 2.7 million tons not emitted is 2.7 million tons that aren't destroying the planet, and hopefully some of the habits we've built over lockdown (like working from home, or flying less) will lead to a positive shift in future.