“So far these ‘carbon sinks’ have been locking away almost half of all the carbon dioxide we emit. Methane Globally averaged concentrations for CO2 reached 403.3 parts per million in 2016, up from 400.00 ppm in 2015. Ask your question. Experts warned that the world was “running out of time” to reverse rising levels of carbon dioxide (CO2) to tackle climate change. High-resolution carbon dioxide concentration record 650,000–800,000 years before present. www.ncdc.noaa.gov/paleo/pubs/luethi2008/luethi2008.html.Law Dome, Antarctica, 75-year smoothed: … The WMO Greenhouse Gas Bulletin reports on atmospheric concentrations of greenhouse gases. © 2020 World Meteorological Organization (WMO), Greenhouse gas concentrations surge to new record, World Meteorological Organization's Greenhouse Gas Bulletin, Nineteenth session of the North Eurasia Climate Outlook Forum (NEACOF-19) - Roshydromet, WMO welcomes launch of new ocean-monitoring satellite, Landmark Data Conference sets the scene for change, Carbon dioxide levels continue at record levels, despite COVID-19 lockdown, Arctic Climate Forum expects above normal winter temperatures. The annual greenhouse gas bulletin from the WMO showed that in 2013 concentrations of CO2 in the atmosphere were 142% of what they were before the Industrial Revolution. This system builds on the long-term experience of WMO in greenhouse gas instrumental measurements and atmospheric modelling. Concentrations of carbon dioxide, the major cause of global warming, increased at their fastest rate for 30 years in 2013, despite warnings from the world’s scientists of the need to cut emissions to halt temperature rises. Concentrations of CO2 are now 145% of pre-industrial (before 1750) levels, according to the Greenhouse Gas Bulletin. We are running out of time. Since 1990, there has been a 40% increase in total radiative forcing – the warming effect on our climate - by all long-lived greenhouse gases, and a 2.5% increase from 2015 to 2016 alone, according to figures from the US National Oceanic and Atmospheric Administration quoted in the bulletin. It also plays an important role in the destruction of the stratospheric ozone layer which protects us from the harmful ultraviolet rays of the sun. “Without rapid cuts in CO2 and other greenhouse gas emissions, we will be heading for dangerous temperature increases by the end of this century, well above the target set by the Paris climate change agreement,” said WMO Secretary-General Petteri Taalas. Five greenhouse gases account for about 96 percent of the increased climate-warming influence since 1750. “Carbon dioxide remains in the atmosphere for many hundreds of years and in the ocean for even longer. Answered Concentration of greenhouse gases has risen rapidly due to 2 See answers koushikmkj koushikmkj These observations help to track the changing levels of greenhouse gases and serve as an early warning system for changes in these key atmospheric drivers of climate change. Measurement data are reported by participating countries and archived and distributed by the World Data Centre for Greenhouse Gases (WDCGG) at the Japan Meteorological Agency. Carbon dioxide concentrations have increased substantially since the beginning of the industrial era, rising from an annual average of 280 ppm in the late 1700s to 401 ppm as measured at Mauna Loa in … The last time the Earth experienced a comparable concentration of CO2 was 3-5 million years ago, the temperature was 2-3°C warmer and sea level was 10-20 meters higher than now. As far as direct and proxy observations can tell, such abrupt changes in the atmospheric levels of CO2 have never before been seen. Log in. This is 122% of pre-industrial levels. Surging carbon dioxide levels have pushed greenhouse gases to record highs in the atmosphere, the World Meteorological Organisation (WMO) has said. Over the last 800 000 years, pre-industrial atmospheric CO2 content remained below 280 ppm, but it has now risen to the 2016 global average of 403.3 ppm. Concentrations represent what remains in the atmosphere after the complex system of interactions between the atmosphere, biosphere, cryosphere and the oceans. “Future generations will inherit a much more inhospitable planet, “ he said. The abrupt changes in the atmosphere witnessed in the past 70 years are without precedent. The natural ice-age changes in CO2 have always preceded corresponding temperature changes. Atmospheric methane reached a new high of about 1 853 parts per billion (ppb) in 2016 and is now 257% of the pre-industrial level. To optimize the use of solar, wind and hydropower production, new types of weather, climate and hydrological services are needed. “CO2 remains in the atmosphere for hundreds of years and in the oceans for even longer. Carbon dioxide is responsible for four-fifths of the increase in warming by greenhouse gases, with concentrations in the atmosphere averaging 396 parts per million (ppm) in 2013.