The evidence since the 1800's is that high life expectancy is strongly correlated to industrialised, modern societies - i.e. the very societies that "pour tons of garbage into the atmosphere".
Whereas the societies that live in relative peace with our gentle Mother Gaia (for instance the poor bastards in Swaziland) die off at age 33.
Are you telling me you believe our high life expectancy is due to eating industrial garbage?