Plants in DangerPlants need clean a

Plants in Danger
Plants need clean air and water to grow polluted air and water can damage them.
Global warming is also a problem.
Some plants cannot grow in their usual place if the temperature gets too high,or if there is extreme weather like floods.
We are using too many trees.
Big international companies cut down huge numbers of trees for wood to make furniture or paper.
Sometimes they cut down trees in rainforests to make space to grow crops or to raise cattle,so that they can produce cheap food like palm oil and hamburgers.