Now as to this question...
$1:
WTF does climate change or environmental activism got to do with socialism?
By first example, have you paid any attention to what's in this Green New Deal?
$1:
The Green New Deal doesn’t just include environmentalist proposals: It also includes a grab bag of other left-wing goodies to “mitigate deeply entrenched racial, regional, and gender-based inequalities in income and wealth (including, without limitation, ensuring that federal and other investment will be equitably distributed to historically impoverished, low-income, deindustrialized, or other marginalized communities in such a way that builds wealth and ownership at the community level.)”
Among the liberal wish list items included, the Green New Deal contains a proposal for universal health care and a basic minimum income program to make up for all the jobs lost in the process of transitioning to a fully green economy.
and why is the Paris Climate Accord all about redistributing the wealth?
The climate scare is about getting control of energy. Energy is what powers the means of production.
Socialism is by definition control of the means of production. Socialists and their activists know all this even if the average meathead they'd like to con is too thick to notice.