Human actions have depleted the natural resources of the planet to a great extent. From polluting the atmosphere, depletion of fossil fuels to harming aquatic life, human footprints have been literally everywhere. The price has to be paid by the coming generations.
Calculations by scientists showed that the carbon levels reached an all-time high of more than 415 parts per million in the middle of May. For the second time in the span of two months, researchers at Scripps Institution of Oceanography and NOAA have bad news to be shared.
The team of researchers recorded the highest monthly average of carbon dioxide above the largest volcano in Hawaii since measurements began 61 years ago. The number is 414.8 parts per million, which has been the greatest of the increase in measurements made every year in May. Researchers at Mauna Loa Atmospheric Baseline Observatory have been recording the values from 1958 and the values have been plotted on a curve known as “Keeling Curve“- after Charles David Keeling who observed a strange trend. The results have been published by The Scripps Institution of Oceanography.
When the measurement began, the average annual increase of carbon dioxide was approximately 0.7 ppm. It increased to 1.5 ppm in the 1990s and in 2000s it had a value of 2.2 ppm. In 2019, both NOAA and Scripps found that this May monthly average – the highest point each year – is 3.5 ppm higher than it was in 2018. So, the annual change in CO2 is now 3.5 ppm per year. While a single reading can be dismissed, this continuous increment cannot be ignored.
Ralph Keeling, director of the CO2 program at Scripps and son of Charles Keeling commented that the human intervention in the earth’s atmosphere can be clearly observed as we focus on the bigger picture. Most of this change is due to the extremely high usage of fossil fuels which has led to search for more greener sources of energy. Climate model projections do not give us the current state of the atmosphere and they tend to overlook the alarming situation of global warming. However, these measurements are real time and give us an overview of our situation and where we are heading to.
Pieter Tans, an atmospheric scientist with the Global Monitoring Division of the NOAA remarked that it is very essential to have the correct, long term measurements of the carbon dioxide levels to get a clear understanding of the changes caused by fossil fuel pollution to our climate.
There have been many proposals on how to tackle the problem of global warming, but without a sharp decline of the carbon dioxide emissions, the proposals are borderline useless.