Red sky at night, is smog on sight?

 Sunsets are arguably one of the most fascinating natural phenomena. According to popular belief, however, red sunsets reveal something ominous: air pollution. The more polluted the air, the redder the sunset. Bummer!  There's some truth in this, but it should be taken with a big pinch of common sense. It's true that particulate matter (solid …

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Who is to blame for Climate Change?

The twenty-seventh United Nations Conference of the Parties (COP27) on climate change begins this Sunday. This year the conference is held in Sharm El-Sheikh (Egypt). Delegates from all around the world are summoned to discuss political and economic solutions to the climate crisis. The science is clear: the cause of recent climate change is greenhouse …

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The Winter Olympics, an endangered species

The Winter Olympic Games are being held in Beijing right now. In addition to the Chinese capital, the races are also held in the nearby mountainous areas of Yanqing and Zhangjiakou, which however are usually too dry to have a good snow cover. The chronic lack of snow is the organisers' main headache. One of …

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The great challenges of COP26

The 26th annual Conference of Parties (COP26) starts this week in Glasgow (UK), organised by the governments of the United Kingdom and Italy. The conference is held one year after the originally scheduled date, because of the COVID-19 pandemic. This year, the meeting goals are nothing short of ambitious.  The Conferences of Parties have been …

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