How important is 'Save the planet' movement?

How many people actually care about the planet and think about means of preserving nature?

I am sure most humans will have read about animals becoming extinct, the deforestation, amazon fires and so on but only a few handfuls take it to their heart and think, speak and act upon it.

Even if anybody does get vocal about nature and preserving its beauty, someone or another starts to spread slander and abuse them. Especially, if the protest is against people of importance.

As a commoner, we can do several things to help preserve the planet and make sure that future generations live in a pollution-free environment.

How to go about it?

stop using plastic bags
grow plants if you possibly can
purchase groceries in bulk and thus avoid multiple trips to the store and increased number of packages
clear out the unwanted stuff inside and outside your house and dispose of it properly
if possible, try to walk to nearby places instead of using your vehicle
switch off your refrigerator for at least two hours a day
do not waste water
try to conserve rainwater
please do not purchase stuff like corals or animal products because it encourages illegal trade in such items
stop consuming factory farm produce
make sure organic products are indeed organic
try to include home-cooked meals in your diet
spread the message of 'GO GREEN' through social media accounts and also to friends and family
try to build a garden in your backyard or at least as a terrace garden
include the holy basil plant in your garden - the leaves are very good and can be eaten as such to cure cough, cold and sore throat
leave a bowl of water outside for birds, especially during the summer