Scientists and engineers can make major contributions by developing technologies that produce less pollution and waste and that preclude ecosystem degradation.

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Credits:
"Bananas" by Elembis [Public domain], via Wikimedia Commons:
https://commons.wikimedia.org/wiki/File:Bananas.svg

"Gobabeb solar panels" by GbbIT, licensed under a Creative Commons Attribution License (CC BY-SA 3.0):
https://commons.wikimedia.org/wiki/File:Gobabeb_solar_panels.jpg
https://creativecommons.org/licenses/by-sa/3.0/deed.en

"Wind Mill of Bangui, Ilocos Norte" by JufelBaldado, licensed under a Creative Commons Attribution License (CC BY-SA 3.0):
https://commons.wikimedia.org/wiki/File:Wind_Mill_of_Bangui,_Ilocos_Norte.jpg
https://creativecommons.org/licenses/by-sa/3.0/deed.en