The Solar Price Revolution

"The Solar Price Revolution": A commentary by Klaus Töpfer

A silent revolution is under way. In November, Dubai announced the construction of a solar energy park that will produce electricity for less than $0.06 per kilowatt-hour – undercutting the cost of the alternative investment option, a gas or coal-fired power plant. The plant – which is expected to be operational in 2017 – is...
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The Water-Energy Nexus: Seeking Integrated Solutions

World Water Day Banner

Today is World Water Day. This year’s motto, ‘Water and Sustainable Development’, is in keeping with the prominent role sustainable development is expected to play in 2015. In September the United Nations will agree on a set of Sustainable Development Goals (SDGs). While the previous Millennium Development Goals (MDGs) focussed on eliminating poverty, now the...
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Q&A with Guy Brasseur: Communicating Science

How can ordinary people be familiarised with science? Few other researchers have devoted as much attention to this question as the Belgian atmospheric scientist Guy Brasseur. From 2009 to 2014, he was head of the Climate Service Center (CSC) in Hamburg, whose task is to communicate the latest climate research findings to politicians, scientists, and...
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Air Pollution and Climate Change: Fostering Better Decisions

A fireplace in the living room – some pay a premium for the cosy atmosphere, others consider it an irresponsible luxury. From an environmental point of view, wood-burning for residential heating isn’t the best option. While CO2 emissions are lower than those from gas and oil heating, it often results in greater emissions of air...
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Clean Up Our Skies: On a New Commentary Piece in “Nature”

This December, the 20th United Nations Framework Convention on Climate Change (UNFCCC) Conference of the Parties (COP) will be held in Lima, Peru. There climate change negotiations will focus on reducing emissions of carbon dioxide, the long-lived greenhouse gas primarily responsible for anthropogenic climate change. However, on the short-term, air pollutants that also have an...
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