We all know Greta Thunberg suffered eco-anxiety.  She took action by protesting. It was a small action (at the beginning) but it made her feel better to do something. 

There is good research that shows people to need to feel empowered. Without that they lose hope and meaning in their existence. 

Parents do well to provide choices to their children. Young children are pretty simple in this regard. You can give them a choice of the purple or green sox rather than a choice about whether to wear sox. They generally don't even notice. 

However, parenting teens is more challenging. Especially if they are concerned about their future. What are some things teens can do to make a difference to help save the planet ? 

Everyone has the opportunity to be part of the change. Doing nothing means being part of the problem. 

These are some suggestions... no one has to do all of them to be helping. In fact, you might do something completely different and still be helping.