Sustainability
agriculture
cattle
metane gas
water
co2
grass
deforestation
water
contamination
scarcity
supply
visual water vs virtual water
plastic
fish
micro plastic
recycling
energy
sun
wind
water
oil/gas
nuclear
pollution
air
water
sea
rainwater
ground water
land
soil
fertalizers/chemicals
garbage
plastic
Radioactive
nuclear power plant accidents
deforestation
air
CO2
H2O
Underemne
Climate changes
melting polar ice
rising sea level
Greenland
eskimos
polar bears
global warming
fossil fuel burning
greenhouse effect
CO2
extreme weather
seasons changing
flood
storms
avalances
Population
increasing numbers
density
food and water
wildlife
extinction
loss of habitat
exploitation
elephants
sharks
mountain gorillas
tigers
monarch butterfly
leatherback turtle
rhinocerous