We live in times of environment destruction and cliamte change, so the least we can do is to support the ECOSIA search enginge, which plants trees for our search queries. But: the Addon to have ECOSIA as default search is gone from the Opera AddOn section:
https://addons.opera.com/de/extensions/details/ecosia-the-search-engine-that-plants-trees/

How can we make Ecosia our default search engine again,
or better, when does the addon come back?
best regards!