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Why we’re closer to climate catastrophe than we thought

12 October 2018, 07:02 | Dale Webster

IPCC predicts climate disaster

Scientists call for $2.4tr shift from coal to renewables

It approved the Special Report on Global Warming of 1.5 degrees Celsius that will be a key scientific input into the 24th Conference of the Parties (COP24) to the United Nations Framework Convention on Climate Change (UNFCCC) in Poland in December. It needs really, really radical changes in terms of emissions reduction if you're going to avoid all the climate change impacts that go with warming beyond 1.5 degrees.

- Human-induced warming reached approximately 1C above pre-industrial levels in 2017.

The authoritative Intergovernmental Panel on Climate Change said in a report released Monday that urgent, global action is required to stave off the devastating implications of climate change.

It also highlighted the environment has already seent he consequences of 1ºC of global warming in the form of more extreme weather, rising sea levels and diminishing Arctic Sea ice, among other changes.

- By 2100, global sea rise levels would be 10cm lower with global warming of 1.5C compared to 2C.

Those most vulnerable to the effects of global warming of more than 1.5ºC are the world's poorest people, who have done the least to create this crisis. Coral reefs would decline by 70-90 percent with global warming of 1.5 °C, whereas virtually all ( 99 percent) would be lost with 2 °C.

"Every extra bit of warming matters, especially since warming of 1.5°C or higher increases the risk associated with long-lasting or irreversible changes, such as the loss of some eco-systems", CNN quoted Hans-Otto Pörtner, Co-Chair of IPCC Working Group II, as saying. Placard reads "Global Warming is NOT a Myth". The report also examines pathways available to limit warming to 1.5 °C, what it would take to achieve them and what the consequences could be.

The atmosphere is nearly 1 degree Celsius (1.8 Fahrenheit) hotter than it was at the start of the industrial revolution, and burning more fossil fuels will accelerate the shift toward higher temperatures, the group said in its report.




Limiting warming to 1.5C is possible but will require fast and far-reaching changes to power generation, industry, transport, buildings and potential shifts in lifestyle such as eating less meat.

Greenhouse pollution must be reduced by 45 per cent from 2010 levels by 2030 and 100 per cent by 2050. Carbon dioxide is a tiny percentage of the air; Herzog likens the technique to removing 400 "CO2 marbles" from a pile of one million marbles.

But the report said the efficacy of measures, such as planting forests, bioenergy use or capturing and storing CO2, were unproven at a large scale and carried some risks.

"It's a line in the sand and what it says to our species is that this is the moment and we must act now", said Debra Roberts, a co-chair of the working group on impacts. That could reduce flooding and give the people that inhabit the world's coasts, islands and river deltas time to adapt to climate change. "Climate change represents a huge risk for all our futures".

The IPCC's report was accepted by all countries, including India. It encompasses 195 member states and is tasked with assessing science related to climate change and providing guidelines for policy makers.

We are nowhere near reaching the target to limit average global temperature rises to 1.5C above pre-industrial levels, and the world is on track to be 3C warmer.

The Prime Minister says the latest report of the International Panel on Climate Change is a stark reminder of the threat facing the planet.

"The construction and property industry in the United Kingdom is an economic juggernaut, and our buildings account for approximately 30 per cent of carbon emissions". As per the report climate change will significantly hamper the GDPs of developing economies such as India.



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