(correction please) People should fly less because it causes pollution. I completely disagree with this statement. There are countries which live off tourism and if people wouldn’t travel, in time, these countries would be in crisis. To prevent pollution we must take other measures. There are simple things we can do to help. For example, we can change to energy saving light bulbs, turn off the tv and other electronic devices, plant trees… These measures are simple and can help a lot if we all do them. We also use bicycle instead of cars, or recycle