Author Archive

Water is a Source of Growing Tension and Violence in the Middle East

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By Peter Gleick and Charles Iceland

August 27, 2018

In the hot, dry Middle East, where populations are growing rapidly and all major rivers cross political borders, water has become a focal point for escalating violence. From the foothills of the Taurus Mountains in Turkey that feed the Tigris and Euphrates rivers to the desert wadis on the southern tip of Yemen, the history of water conflicts provides a cautionary tale: When water and politics mix, and when cooperation gives way to conflict, freshwater becomes an issue of human and national security and a tool of violence.

The long history of conflict in the region is intertwined with the history of water. The earliest recorded water fight is a dispute around 2400 BC over the use of irrigation canals in the ancient Mesopotamian cities of Umma and Lagash between the Tigris and Euphrates rivers. When the walls and temples of Babylon were razed around 690 BC, the waters of the Euphrates were used to wash away the ruins.
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Coping with the Impacts of Climate Change on Coffee Cultivation in Brazil

By Giuliana Chaves Moreira
May 4, 2018

Climate change poses severe threats and negative impacts to agricultural production in Brazil and around the world. However, emerging water stewardship practices can be a critical force in mitigating and adapting to these impacts.

The main effects of climate change on agriculture are related to changes in the availability of water to crops and the occurrence of more severe and more frequent extreme weather phenomena, such as floods, heat waves, frost, hurricanes, droughts, and more.

Data from the Brazilian Panel on Climate Change indicate that Brazil could lose about 11 million hectares of agricultural land due to climate change by 2030.

Coffee cultivation is of particular concern as Brazil is the world’s biggest coffee producer – yielding 2,595,000 metric tons of coffee beans in 2016 alone – and has been for over 150 years. Coffee cultivation is sensitive to both high and low temperatures, and as such faces significant climate risks. According to the estimates of the IPCC report released in 2014, the combination of the increase in average temperature and the scarcity of water resources would considerably reduce coffee cultivation.
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