The branches of these conical shaped coniferous trees are flexible and let snow slide off. Also, the needle-like leaves reduce water loss. Human action is having a significant impact on the Taiga. Deforestation - Current extensive logging in boreal forests may soon cause their disappearance. Acid rain Acid rain is also causing significant problems for the Taiga forests.
Acid rain is rain that is more acidic than normal.
Scientists have discovered that air pollution from the burning of fossil fuels is the major cause of acid rain. Power plants and factories burn coal and oil. The smoke and fumes from burning fossil fuels rise into the atmosphere and combine with the moisture in the air to form acid rain. The main chemicals in air pollution that create acid rain are sulphur dioxide and nitrogen oxides. Acid rain does not usually kill trees directly.