Top Ten Causes Of Global Warming ( Part 2) Airplanes are indispensable to today’s society. Businessmen fly across the country on a daily basis to meet the demand of industry. In less than 24 hours, you can fly across the circumference of the planet traveling from the US to China. So how can you possibly blame these amazing gravity defying machines of global warming? 10% of the green house gas emissions come from airplanes. You might be going to a vacation or to a business meeting but those airplanes you travel on are releasing their pollution directly into the air they fly in.