The "Jetpod" is an air-borne taxi that is quiet and environmentally friendly.

CNN: 'Flying taxi' of the future revealed

It's important to remember that around half of the 25 billion tons of air-borne CO2 emissions humans produce each year also gets absorbed by the oceans.

CNN: All About: Coral Reefs

Last year, the U.S. Department of Veterans Affairs decided that the link between air-borne dioxin (an ingredient in Agent Orange, and also a common air-borne pollutant emitted by waste incineration, some chemical manufacturing processes, cars and trucks, and other industrial sources that burn fuel) and diabetes was so strong, it compensated 270, 000 veterans for diabetes linked to dioxin exposure.

FORBES: Two New Reasons to Worry about Air Pollution: Obesity and Diabetes