Fossil fuels
superheating the wind
melting the glaciers
acidifying the oceans
Nuclear power
poisoning the planet
making Armageddon a question
of when not if
Deforestation
speeding the rise of CO2 levels
visiting irreversible destruction
on the biosphere
Overpopulation
exhausting the soils
and sucking dry the aquifers
where had been wilderness.
Source