1
More than half of the world's forest cover has been removed and __ is responsible for nearly 20 per cent of global carbon emissions.
2
As the concentrations of __ gases in the atmosphere increase, the temperature of the earth increases, and more water evaporates from the surface of the earth.
3
Many species of plants and animals are in danger of __. (disappearing)
4
Even though conservation efforts are being made, with the destruction of their natural habitat, orangutans are listed as an __ species.
5
Most natural _ - hurricanes, earthquakes, or wildfires - lie largely beyond human control.
6
Some cities suffer severely because of heavy industrial use of chemicals that cause air __.
7
Carbonfund.org makes it simple for anyone, or any organisation, to reduce and offset their carbon __.
8
The expansion of agricultural activity has led to the destruction of huge areas of natural __, including forests, grasslands and wetlands.
9
Biologists have estimated that there are around one million animal and plant __ in the rain forests.
10
Do you think the damage to the ozone __ is irreversible
