Aviation produces up to 5% of national carbon emissions in countries like the UK, growing every year  - 2% globally.  However, because of the relative impact of vapour trails, cirrhus cloud formation and other factors, it is likely that this 2% represents 3.5% - 5% of the total human impact of global warming. 

Many aircraft flying today were made over 25 years ago and waste fuel. Simple steps can be taken to improve fuel efficiency in older planes – by as much as 7%.

Future of Aviation post written in 2009 - very accurate.

Written in 2009 - anticipating future workplace trends very accurately.  

Life’s too short to travel to every meeting and the latest technology really makes you feel you are all together.   Three dimensional images can also be created of conference speakers for larger audiences, walking life-size on stage. Over 25% of many corporation’s carbon footprint is travel and air travel is a significant element of this.  If a third of business travel could be turned into virtual meetings, it would reduce annual global emissions of CO2 by over 120 million tons. Many business leaders are already spending up to six weeks a year cruising at 35,000 feet.  What happens in the next three to five years?

Studies on Chicago City Hall after installation showed that roof temperatures fell by up to 30 degrees C on hot summer days and surrounding areas were cooler by 9 degrees C. We know that with every degree less difference between internal and external temperature, the fuel bill can fall by up to 10%.

Smart power regulation means that spikes of electricity demand can be managed by automatically turning off certain devices in factories, offices and homes when the grid is under strain.  It also means that electricity pricing can be varied from hour to hour depending on demand. Power companies have huge challenges managing peak demand and the result is wasted energy and extra costs.  Take Australia:  on the hottest four days a year, energy use can jump by over 50% compared to the average.  10% of the entire generating capacity of the country is used for just four days a year.