Rising sea levels, melting ice caps and coral reef bleaching are caused by g_____ w________.
global warming
Travelling by air, driving a car or using coal-generated electricity will make your c______ f_______ bigger.
carbon footprint
The world is o____p________ . There're currently 7 billion people living in our planet and numbers are estimated to increase to 8 billion by 2025.
overpopulated
The build-up of g_________ g____ into the atmosphere has led to changes in the world's climates.
greenhouse gases
After the mine released t_____ w_____ into the river, all the fish died.
toxic
The blue, green, and yellow bins are for things that can be r_________ like paper and glass.
recycled
If you want to save the planet, join one of the g_____ political parties.
green
Every year more animals are listed as e__________ s_______.
endangered species
The global rise in temperatures is making the polar i___ c____ melt.
melt
Coal, oil, and natural gas are all examples of f_____ f_____.
fossil fuels
This prevents harmful ultraviolet light from the sun from reaching the earth: o_____ l_____
ozone layer
Each species, no matter how small, has a role to play in the e_____________.
ecosystem
D___________ is the destruction of forests by cutting down trees on a large scale.
Deforestation
The Amazon is the biggest r_________ on earth.
rainforest
Burning fossil fuels in one country can cause a_____ r_____ in other countries.
acid rain
Unattended l________ are places where waste is left to pile in heaps and which cause land pollution.
landfills
