Carbon in air recorded to be the highest in May, 2019

The estimation is the most astounding occasional pinnacle recorded in 61 years of perceptions over Hawaii’s biggest volcano and the seventh consecutive year of steep global increases in concentrations of carbon dioxide (CO2), as indicated by information distributed today by NOAA and Scripps Institution of Oceanography. 2019 highest was 3.5 ppm higher than the 411.2 ppm top in May 2018 and marks the second-most elevated yearly hop on record.

“It’s fundamentally essential to have these precise, long haul estimations of CO2 to see how rapidly non-renewable energy source contamination is changing our atmosphere,” said Pieter Tans, a senior researcher with NOAA’s Global Monitoring Division. “These are estimations of the genuine climate. They don’t rely upon any models, yet they help us confirm atmosphere model projections, which if anything, have belittled the quick pace of environmental change being watched.”

Carbon dioxide occurs naturally in the earth’s atmosphere as a colourless, odourless gas.

The main source of carbon dioxide into the atmosphere is from living organisms breathing it out. Similar quantities are absorbed by plants. Other (much smaller) natural sources are forest fires and volcanoes. The burning of fossil fuels (coal, oil and natural gas) for industrial, domestic and transport purposes releases significant, though relatively smaller, amounts.

On a local scale, increased levels of carbon dioxide are unlikely to cause adverse environmental impacts. Its main impact is on a global scale: It is one of the main “greenhouse gases” contributing to global warming and is used as a reference against which to rate the “global warming potential” of other greenhouse gases.

How might exposure to it affect human health?
At normal environmental concentrations, carbon dioxide has no impacts on human health. At extremely high (artificial) concentrations in an enclosed space the reduction in oxygen levels could lead to suffocation. 
What steps are being taken to limit the potential impacts?
The United Nations Framework Convention on Climate Change (Kyoto Protocol, 1997) introduced measures (such as taxes on fossil fuels) designed to achieve reduction of greenhouse gas releases (including carbon dioxide). Amongst the other signatories from around the world, the UK government (including Scotland) is committed to reaching targets of reduction of carbon dioxide emissions by 2008-2012.

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