Vitalik Buterin writes:

As it turns out, 1952 was not even the peak: in the late 19th century, even higher concentrations of air pollutants were just accepted and normal. Since then, we’ve seen a century of ongoing and rapid declines. I got to personally experience the tail end of this in my visits to China: in 2014, high levels of smog in the air, estimated to reduce life expectancy by over five years, were normal, but by 2020, the air often seemed as clean as many Western cities. This is not our only success story. In many parts of the world, forest areas are increasing. The acid rain crisis is improving. The ozone layer has been recovering for decades.

I have experienced something similar as well. Dubai used to be pretty cruel in the summer. But it’s getting better and greener every year. The massive rainfall and flooding on April 16 aside, the change is a welcome one. And I don’t think this is happening by accident.

Nothing actually grows in a city like Dubai. Every inch of greenery, which is growing on monthly basis, is deliberate and planned for.

We have to pay attention to every problem we want to solve.