What source of air pollution is the biggest killer?

A recent study in The Lancet Public Health estimated which sources contribute most to the mortality associated with PM2.5 and NO₂ in 857 European cities. The results show great variability between the cities studied, but in general the largest contributor to PM2.5 mortality is emissions from residential sources (23%), with the agricultural sector in second place (18%), followed by industry (14%), transport (13.5%), the energy sector (10%), natural sources (9%) and shipping (5.5%). In terms of NO₂ mortality, there is one very prominent contributor, which is the transport sector, with an average contribution across all cities of 48.5%, followed by industry with an average of 15%, the energy sector with 15%, housing (10%) and shipping (10%).

The Lancet, 23 July, 2023

In this issue

Editorial: EU climate target still not adapted to climate reality

On 8 September, the UN once again issued a report showing how governments are failing to take adequate action to implement the promises they made in the Paris Agreement. The so-called Synthesis Report on the Technical Dialogue from the First Global Stocktake showed how governments are good at making ambitious collective commitments but fail to take the right action at home to turn these collective pledges into a reality.

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The importance and role of forests in Poland

A varity of forest types in Poland play an important role in the country's ecosystem and cultural heritage.

Poland is home to a variety of forest types, which cover an area of nearly 9.3 million hectares and account for 29.6% of the country’s total land area. These forests play an important role in the country’s ecosystem, economy and cultural heritage. The forests are dominated by coniferous species, which together cover 76.6% of the area. These include pine, larch, spruce and fir. Deciduous species appear on 23.4% of the area.

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