Aviation is responsible for about 3.5% of climate change, so I think it is significant. Reducing coal use should remain a priority, but I'm sure that industry w

Aviation is responsible for about 3.5% of climate change, so I think it is significant. Reducing coal use should remain a priority, but I'm sure that industry will find many excuses for not reducing coal. What concerns me about aviation is that the fuel isn't sufficiently taxed and that empty flights are often made just so that the airlines can keep their airport privileges.