Solutions to environmental problems a. must work on a global scale b. must always be designed and discussed in the political arena before implementation c. should be designed with the goal of sustaining earth's natural capital d. can be implemented only by scientists e. must focus on short-term fixes because long-term solutions are generally unattainable

a. must work on a global scale

Explanation:

Environmental issues are global issues that need to be tackled in a global scale if we are to save our planet and it's resources.

We have extreme cases of pollution , overpopulation which are global issues that are leading to an extreme demand on environmental resources and these factors do not affect only particular parts of the world but they affect almost every part of this planet earth.

This is a human race issue that needs solution that will work all over the world if we want to completely tackle the environmental issues at its head.

i dont know but thats a great qusestion