What do scientists think?
That the humans are responsible.
What can we do in our daily lives?
Use the 3´rs, avoid buying cars, planting trees.
Why are glaciars disappearing?
Because the earth is hotter.
What does a biodigester need?
Organic material and water.
Name some of the Earth´s contaminers.
Car gas, waste, pesticides.
Which signs indicate Earth´s danger?
Animals moving to new homes, glaciers dissapearing.