Russia’s fires cause “brown cloud,” may hit Arctic


Smoke from forest fires smothering Moscow adds to health problems of “brown clouds” from Asia to the Amazon and Russian soot may stoke global warming by hastening a thaw of Arctic ice, environmental experts say.

“Health effects of such clouds are huge,” said Veerabhadran Ramanathan, chair of a U.N. Environment Programme (UNEP) study of “brown clouds” blamed for dimming sunlight in cities such as Beijing or New Delhi and hitting crop growth in Asia.

The clouds — a haze of pollution from cars or coal-fired power plants, forest fires and wood and other materials burned for cooking and heating — are near-permanent and blamed for causing chronic respiratory and heart diseases.


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