Giovanni Bisignani CEO, IATA

We all know aviation is a huge contributor to greenhouse gas emissions. Here are some numbers given by Giovanni Bisignani:

2.3B people flew last year with just 900 fatalities.
Fuel efficiency has improved by 70% in the last decade
32M tons of CO2 has been saved through best practices in the last 4 years

Mr. Bisignani set several goals he would like see hit:
25% improvement in fuel efficiency by 2020
70% use of alternative fuels such as biofuels by 2020
50% carbon reduction by 2020

Mr. Bisignani went on to say that while we must ensure positive economic outcome, we must have regulations to add structure to the voluntary actions currently being taken by the airlines to "link government targets with the good work of the airlines".

Biofuels were mentioned several times as an important part of meeting the above goals. Biofue;ls can reduce the carbon footprint in the aviation industry by 80%.