Vancouver is normally one of the worlds cleanest cities but this July its air resembled that in Beijing due to smoke and ash from forest fires over 200 kilometres away. Further fires along the western side of the US and Canada have caused many health warnings particularly at night when smoke settled on valley communities. During August hot weather across southern Europe also led to forest fires in Spain, Portugal and Greece. Related: Pollutionwatch: The world's dirtiest cities Continue reading...
Source: theguardian.com