Being an Ecological activist is much easier for every one and its all about care.

Care about the envoriment, care about pollution, care about recycling and the need to kepp or planet clean. The rest will come right after, automaticly. One man on the planet, will be the greener guy ever, can not make the change. The second one to join him will improve the results but still, the impact of these two guys on the global ecological problems will be less than minor. Add more people who cares, some csre about keeping the  sea waters clean, some care to save endangereds spieces, others care about air pollution and so on.

Gather all these people together and combine their activities, here you have the impact that is so needed.