Wikimedia is now associated with a project where trees are planted.
In many ways the notion of planting new trees is great.
However, very often it is not. In Europe grazers are actively introduced to
prevent shrubs and trees from growing. Reasons for this abound. The first
is that it helps biodiversity. Second, trees often create a fire risk.
Third, when trees are in the seed bank, you do not have to plant them, they
will grow when they are left alone to grow. When they are not in the local
seed bank, trophic rewilding will introduce the species that distribute
seeds and/or you can plant trees as a starter for a seed bank.
When you really really want to make a difference, you protect marshes,
prevent peat from burning or being exploited. You can prevent water rushing
to sea by introducing leaky weirs/beavers and adding swales to prevent
water to rush downstream. There is plenty of literature to be found on
these subject in Wikidata. For Wikipedia there is a recent template that
links a reference in a Wikipedia article to the item for the paper in
When you really care to understand a paper, you use the Scholia for a paper
to learn more about what the publication is about.. Yes, more effort to
expose scientific papers would be cool. This  is an example of a paper I
am working on at the moment.