This letter from the year 2070 describes a dystopian future where water has become extremely scarce due to environmental destruction. The writer recalls how plentiful water was in their childhood but how now people are only allowed half a glass per day. Cities are dry and contaminated, the population is sickly and prematurely aged, and assaults over water are common. The environment is severely degraded without trees or vegetation and the effects of climate change are being felt. Life expectancy is just 35 years and the future of humanity is in peril without solutions to the water crisis.