World population to hit 8bn in 2023, says new UN survey

06-20-2017

the Guardian

The world's population will break through the 8 billion mark in 2023, there are more men than women, and next year the number of over 60s will top 1 billion for the first time, according to the latest findings and forecasts from the United Nations annual population survey.

An Ancient Tool Holds Promise for Modern Water Problems

04-23-2017

Paulina Concha Larrauri

A large cistern in the ancient city of Resafa, Syria, was filled by channeling periodic floods from a wadi west of the city. The use of complex systems for directing and harvesting water dates back thousands of years.

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