Back Ground Noise

Well shorT hair is environment friendly.. Less time spent hair drying it... (1) Electricity saved. Less coal burnt. Cleaner air. Less C02 emissions. No global warming. No El-Nino Phenomenon. Crops saved because no draught. No hungry. No eratic rains so no Flash floods so no people dying. Also no global rise in sea level. So the low lying islands saved. So lives saved again.
Also since people have short hair.....

Smaller towels made through out the world. Less fabric used. So machines work for less time. They use less electricty. So we are back to point 1.
Less shampoo less water. Cleaner water. No dead fish. No water purification plants required.

So as we see in the above argument. Short hair saves lives.

But long hair Rocks