Dedicating few hours and calories on a weekend, you can greatly help environment through an activity that is available to anyone interested: planting trees! Initiated by WWF Barcelona, one of the activities I joined had the purpose to “reclaim” (on behalf of nature) a riverbed (from humans habits and invasive species, apparently), as apart from planting local species of trees, we also had to participate in the removal of an invasive species of plant, called American cane (although it arrived here from Asia), which grows so tall and can take over full territories out-growing the smaller local plants, and also to collect the ubiquitous plastic waste, left by barbecue lovers in the area.
Especially in proximity of cities, these places are equivalents of oasis in the desert for many species of birds and insects, used as shelter, resting and feeding grounds, and even as home for this handsome pheasant!
Either you are planting trees in your own garden, or in a friend’s garden, or in public spaces, it does help nature and wildlife! You may never be able to replace a pristine forest, or be as efficient as nature is (when not disturbed by human activity), but people can be a true force as well, if each of us contributes, considering the large population today, number do counts, especially closer to urban areas! Don’t hesitate, join a larger group if you have to, there are plenty organizations willing to accept your volunteering! I am sure you will enjoy, as I did!