Published: Wed, October 10, 2018
Science | By Michele Flores

Which message best motivates change: IPCC or the Nobel Prize?

Which message best motivates change: IPCC or the Nobel Prize?

One of the lead authors, Murdoch University climate scientist Jatin Kala, said even if global warming was kept to 1.5C there could still be "dire consequences" for WA's South West, such as altered growing seasons in the Wheatbelt and wine regions such as the Swan Valley.

And if we hold warming to 1.5 degrees instead of 2 degrees, the report suggests global sea level rise will be a whole 10 centimetres lower - potentially stopping what the report describes as a "disproportionately rapid evacuation" of people from the tropics.

President Donald Trump says he plans to review the United Nations report that warns of global warming-caused chaos unless drastic action is taken - although he says he's skeptical of its authors.

Neither Premier Ford nor Mr. Kenney have yet said what policies they would employ to cut emissions, or whether they support Canada's objective of reducing greenhouse gas emissions by 30 per cent below 2005 levels by 2030 - a commitment made under the Paris accord. And carbon dioxide emissions must reach net zero around 2075 - meaning the amount of carbon dioxide entering the atmosphere equals the amount being removed.

Recognizing both Nordhaus and Romer together acknowledges the need to start using the power of the market economy to address unsustainable trends and the increasingly apparent reality that we can only achieve the necessary ends through technological advances, many of which do not yet exist. "Sometimes they want to save it from global warming, other times they say they want to save it from global cooling". Global CO2 emissions may need to peak around 2020.

At 1.5 degrees, the report finds that 70 to 90 percent of tropical coral reefs will vanish.

"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.

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The Intergovernmental Panel on Climate Change (IPCC) report, requested by governments, was issued ahead of a United Nations conference in December in Poland that will consider how to increase country ambitions to cut emissions and manage climate risks better. We need to make to make major changes in transportation, buildings, industry, and how we use land. "And what is going to happen from now until 2030 is critical, especially for CO2 (carbon dioxide) emissions".

The review of thousands of scientific papers also said the spread of disease and economic damage and harm to yields of crops will be less severe at 1.5C than 2C, as will the extinction of species.

What Will We See Once Global Warming Is Limited To 1.5C? Losing the ice would tremendously increase the Arctic's warming, which is already at least twice the global average rate.

Developing nations and least developed countries have been asking developed nations, particularly the U.S., to take historical and moral responsibility for being one of the largest greenhouse gas emitters.

(Here's a handy graphic to explain the differences between 1.5 and 2 degrees Celsius of warming.) The IPCC's report drew information from more than 6,000 scientific studies and 132 authors. And, we have certain areas in the world, which are extremely sensitive.

A target was in place for the world to stop the global temperature rising more than 1.5C.

"Urban systems that are moving towards transformation are coupling solar and wind with battery storage and electric vehicles in a more incremental transition, though this would still require changes in regulations, tax incentives, new standards, demonstration projects and education programs to enable markets for this system to work", the IPCC report said. But a lower temperature increase would allow humanity more precious time with which to adapt to the adverse conditions presented by climate change.

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