Ecology and Environmentalism in the 21st Century

Does it have to be correspondence courses? Most schools do offer online only classes.
There is also Master Class, which offers lessons taught by well known professionals. For writing courses, there are lessons taught by Neil Gaiman, Margaret Atwood, James Peterson, and so on.
https://www.masterclass.com/

There's an environmentalist based for profit company called 4Ocean. They have a movement to clean up the world's waters:

https://en.wikipedia.org/wiki/4ocean
https://4ocean.com/

I've seen them advertised on TV.

Anyone else here heard of 4Ocean?

I have never heard of them. Looks like the company was founded only two years ago.

I'll ask my daughter - I bet she is familiar with this.

She did a project in high school where they did a video tape of her and her friends going to a local beach and cleaning it up - people actually came up to them and thanked them. They then posted it with facts about trash and the impact on the oceans and marine life.