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During this time, the atmospheric carbon dioxide concentration has varied between 180 and 210 ppm during ice ages, increasing to 280–300 ppm during warmer interglacials. [114] [115] CO 2 mole fractions in the atmosphere have gone up by around 35 percent since the 1900s, rising from 280 parts per million by volume to 387 parts per million in 2009.
The following table lists the annual CO 2 emissions estimates (in kilotons of CO 2 per year) for the year 2023, as well as the change from the year 2000. [4] The data only consider carbon dioxide emissions from the burning of fossil fuels and cement manufacture, but not emissions from land use, land-use change and forestry.
Atmospheric carbon dioxide (CO 2) concentrations from 1958 to 2023. The Keeling Curve is a graph of the annual variation and overall accumulation of carbon dioxide in the Earth's atmosphere based on continuous measurements taken at the Mauna Loa Observatory on the island of Hawaii from 1958 to the present day.
Global carbon dioxide emissions spiked to historic levels in 2021, offsetting the pandemic-induced decline from its previous year, according to a new report by the International Energy Agency (IEA).
Data spans from September 2014 to August 2015. As the data cycles through the year, you can see an increase CO2 concentrations across the northern hemisphere going from winter to spring. Then in the summer, as vegetation reaches it's peak, there is a noticeable decline in CO2 concentration throughout the entire northern hemisphere.
Global carbon dioxide emissions from burning fossil fuels are on track to rise around 1% this year, scientists said on Friday, warning this would make it harder for the world to avoid disastrous ...
CO2 emissions are on course to increase by nearly 300 million tonnes to 33.8 billion tonnes this year, a far smaller rise than their jump of nearly 2 billion tonnes in 2021, the agency said in a ...
Starting about 1750, industrial activity powered by fossil fuels began to significantly increase the concentration of carbon dioxide and other greenhouse gases. Emissions have grown rapidly since about 1950 with ongoing expansions in global population and economic activity following World War II.