Would you like to cure cancer and eliminate hunger and have dogs and cats live together in harmony as well ?

I love and respect your post and thank you for the ideas we can make small changes like plastic bags, but I also feel we need to do more common sense and useful things on Earth before we talk about jet-setting off into the Stars of Space.

So I mean people here now on Earth and future generations will be better served if people do like you did and make simple practical sensible measurable suggestions. Until we start to make a positive impact to improve our lives on planet Earth; we might find Mars serves a better purpose as a missile test range than someplace humanity should be visiting.

Thank you for caring and trying to help the environment and planet Earth as well as future generations . . .

/ hugz ; )