Greenhouse gas levels have reached new record highs, prompting experts to warn “the window of chance for action is all but shut” to tackle climate change.
Average concentrations of carbon dioxide reach new levels of 405.5 parts per million (ppm) at 2017up from 403.3 ppm at 2016 and 400.1 ppm at 2015, levels not seen for centuries.
Amounts of additional crucial greenhouse gases methane and nitrous oxide in the air also climbed, the World Meteorological Organisation (WMO) said.
In its yearly bulletin on greenhouse gas amounts, the WMO also warned of a resurgence at a powerful greenhouse gas and also an ozone-depleting substance called CFC-11.
There’s not any indication of a change in the trend of increasing greenhouse gas amounts, which will be driving climate change, sea level rises and much more intense weather and creating waters more polluted, the UN experts warned.
WMO secretary overall Petteri Taalas: “The science is clear. Without quick cuts in carbon dioxide and other greenhouse gases, climate change is going to have increasingly damaging and irreversible impacts in life on Earth.
“The window of chance for action is practically closed.
“The last time that the Earth experienced a similar concentration of carbon dioxide was 3-5 million decades back, once the temperature was 2-3 degrees warmer and sea level has been 10-20 metres greater than today.”
The most recent findings come after a report by the UN‘s Intergovernmental Panel on Climate Change (IPCC) found net emissions of carbon dioxide has to reach zero by approximately 2050 to maintain temperature climbs to 1.5C over pre-industrial amounts and lessen the dangers of climate change.
IPCC chairman Hoesung Lee stated: “The newest IPCC special report on global warming of 1.5C demonstrates that rapid and deep reductions of emissions of carbon dioxide and other greenhouse gases will be necessary in most sectors of the market.
“The WMO greenhouse gas trap, demonstrating a continuing growing trend in concentrations of greenhouse gases, underlines precisely how pressing these emissions reductions are”
Prof Corinne Le Quere, director of the Tyndall Centre for Climate Change Research at the University of East Anglia, said she was”surprised but I’m really worried” that the significant greenhouse gases are rising.
“It appears the urgency and degree of the activities necessary to deal with climate change haven’t sunk in.
“Low-carbon technologies such as solar, wind, and electrical transport have to eventually become mainstream, using old-fashion polluting fossils pushed out quickly,” she explained.