Greenhouse gas levels hit new ‘record high’, report warns

Levels of greenhouse gases in the atmosphere have reached another record high, the World Meteorological Organisation has warned.

Concentrations of carbon dioxide, the main gas driving global warming, reached new highs of 407.8 parts per million in 2018, up from 405.5 parts per million (ppm) in 2017, a report by the UN body shows.

That is well above the level of around 280 ppm seen before the industrial revolution and the start of large scale burning of fossil fuels for energy and transport, which have driven up carbon dioxide in the atmosphere.

The rise is close to the increase seen between 2016 and 2017 and just above the annual average over the last decade, continuing of a long term trend set to drive increasingly severe impacts of climate change, the WMO said.

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