explain why is was important to make the shift to a green economy?

use the following as guide:

$1.$identification of the immediate events which directly resulted in the promulgation of a green economy.$(15$ marks$)$

$2.$an explanation of the challanges of the economy that needed re$-$orientation$(15$ marks$)$

$3.$the discussion of how the green economy would adress$/$is expected to adress the shortcomings of the then exsisting economy $(15$ marks$)`.$use APA referencing system and write reference list at the end