My brother cares a lot about green issues

[alice-5]

what does "green issues" mean in the below sentence?

My brother cares a lot about green issues and has volunteered to do conservation work.

 

[5jj]

As you don't know what it means, I assume you did not write it yourself. Please tell us who wrote it, and the name of the work in which you found it.

 

[alice-5]

I saw it in "collocation in use intermediate" book.

 

[Rover_KE]

… and the author’s name is …?

 

[alice-5]

… and the author’s name is …?

Michael McCarthy

 

[probus]

"Green" issues are those related to the environment, for example conservation, air and water pollution, and endangered species.

 

[emsr2d2]

I saw it in [the book] "Collocation In Use Intermediate". book.