Read lots.
https://www.google.com/search?q=causes+of+pollution&oq=causes+of+pollution&aqs=chrome..69i57j0l5.5739j0j7&sourceid=chrome&ie=UTF-8
and
https://www.google.com/search?q=causes+global+warming&oq=causes+glo&aqs=chrome.0.0j69i61j69i57j0l3.3650j0j7&sourceid=chrome&ie=UTF-8
What causes pollution and increases global warming?
2 answers
people