Planet has only until 2030 to stem catastrophic climate change, experts warn
Planet has only until 2030 to stem catastrophic climate change, experts warn
Climate change: Unprecedented action is required to curb temperature rise, says UN panel report
09 October, 2018, 14:13
Another recent report from the consulting firm PwC makes it clear that even limiting warming to 2 degrees C will be a stretch: "There seems to be nearly zero chance of limiting warming to well below two degrees (the main goal of the Paris Agreement), though widespread use of carbon capture and storage technologies, including Natural Climate Solutions, may make this possible", it says.
"They need to take collaborative and coordinated action, if we're actually ging to achieve a goal of 1.5 degrees warming".
"E$3 ven with erroneous attribution of extreme weather/climate events and projections using climate models that are running too hot and not fit for objective of projecting 21st century climate change, the IPCC still has not made a strong case for this massive investment to prevent 1.5C warming", she said on her Climate Etc. blog.
The planet is already two-thirds of the way there, with global temperatures having warmed about 1 degree C. Temperatures would be 1.5C higher between 2030 and 2052 if the world continued at its current pace, it warned.
In the Indian subcontinent, the IPCC report specifically mentions Kolkata and Karachi among cities that could face an increased threat of heat waves.
A rise in global temperatures by another 0.5 degree Celsius would increase, deepen and spread the impacts wider, the scientists concluded.
Implementing a technique, only theoretical at the moment, of pulling the greenhouse gascarbon dioxide from the air by turning plants into fuel and storing some of the resulting emissions underground.
Mr Hartnett said LGS was not only considered the future of the coal industry itself, but also the effects of climate change on sectors including tourism and agriculture.
Measures to limit global warming to 1.5°C would require far-reaching and rapid transitions in urban, infrastructure, energy and industrial systems, the IPCC said.
And yet, humanity has avoided action for so long that any pathway to a climate-safe world involves wrenching economic and social change "unprecedented in terms of scale", the report said.
The larger import of the finalised report's findings was not much different from that of the drafts that had leaked out earlier, though the negotiations between government representatives and scientists did end up substantially altering how much confidence the governments placed on different findings based on the scientific evidence underlying the summarised take-aways. The Report mentions that the global net anthropogenic Carbon dioxide emissions must decline by about 45 per cent from 2010 levels by 2030 and net-zero emission should be achieved by 2050.
While more than 180 countries have accepted the report's summary, the United States (which is the second biggest emitter in the world) said that their acceptance of the report does not "imply endorsement" of the findings. The problem with even a slight shift in goals is that the scientific work done in advance of the worldwide talks hadn't provided results for a 1.5°C scenario.
"Twenty-40% of the global human population live in regions that, by the decade 2006-2015, had already experienced warming of more than 1.5°C above pre-industrial in at least one season".
"The next few years are probably the most important in our history", said Debra Roberts, co-chair of IPCC Working Group II, in a statement.
Even if warming is kept at or just below 1.5 degrees C, the impacts will be widespread and significant. Of the more than 100,000 terrestrial species that have been studied, for example, the number expected to disappear from half their range doubles between 1.5 and 2.0°C.
Stopping climate change will cost the world £1.8trillion every year for the next two decades, says a UN-backed scientific report. "Limiting global warming to 1.5°C compared to 2°C is projected to reduce increases in ocean temperature as well as associated increases in ocean acidity and decreases in ocean oxygen levels", the report said.
Quick guide What difference would restricting warming to 1.5C make? About as you'd expect: by referring to strategies to reduce emissions as "all that nonsense", and dismissing the UN's comprehensive evidence and warning as "some sort of report". The report explicitly acknowledges the human impact on climate, but instead uses the data to justify continued non-action.
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Add Climate Change as an interest to stay up to date on the latest Climate Change news, video, and analysis from ABC News. The new report has examined what will happen if the world warms by just 1.5 degrees, and it doesn't look good.
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