The twentieth century saw unprecedented growth in population, energy consumption, and food production. As the population shifted from rural to urban, the impact of humans on the environment increased dramatically. The twenty-first century ushered in an era of declines, in a number of crucial par...
You are living in the year of my birth; I am one hundred years old now, writing to you from the year 2107. I am using the last remnants of the advanced physics that scientists developed during your era, in order to send this electronic message back in time to one of your computer networks. I hope...