It seems morally reprehensible to be countenancing a branch of tourism that is so patently a monumental waste of precious resources when a) we are running out of fossil fuels, and b) global warming is a massive and present danger to our way of life. Or do rockets not use fossil fuels? If fabulously wealthy people insist on being space tourists, ought they to be issued with one-way tickets...?

 

If the future is electric and in 50 years we where all driving electric cars, how much more fossil fuels would we burn to produce the enough electricity to run them all.....and what would be the difference to the enviroment compared to running petrol cars?

During the last 100 years, humans have been burning oil, natural gas, peat and coal. In the next 50 years we will burn even more. Burning hydrocarbons produces carbon dioxide and water. How much has this water added to sea-level rise?

Alfred Jacobsen, The Netherlands