Societal changes needed for global warming

Societal changes needed for global warming

Societal changes needed for global warming

The U.N. group, the Intergovernmental Panel on Climate Change, shared the Nobel peace prize with Al Gore in 2007 for its work to share information about climate change.

Even that level of warming will result in more intense and more frequent, extreme weather events, according to the IPCC report.

The IPCC report said, "At +1.5 degrees Celsius, twice as many mega cities as present such as Lagos in Nigeria and Shanghai in China are likely to become heat stressed, potentially exposing more than 350 million more people to deadly heat stress by 2050".

Global sea levels would rise 10 cm lower by 2100.

Remaining below the 1.5 °C global warming target is not a simple feat, but today's report shows that it is a worthy endeavor.

It was in 2015, at the Paris climate conference, that the global community made a pact to pursue efforts to limit warming to within 1.5°C - half a degree below the previous target of 2°C.

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"Every bit of extra warming makes a difference", said Dr Hans-Otto Pörtner of the IPCC. The new report will feed into a process called the 'Talanoa Dialogue, ' in which parties to the Paris accord will take stock of what has been accomplished over the past three years.

The UN's landmark report warned that the world has just 12 years to halt global warming before the planet is plunged into extreme heat, drought, floods and poverty.

Currently, the world has seen 1C of warming over the past 115 years, according to a USA report last year. Human-produced Carbon dioxide emissions would have to drop by 45 percent from 2010 levels by 2030, reaching "net zero" by 2050, according to the report. "The latter would be used as part of a now nonexistent program to get power from trees or plants and then bury the resulting carbon dioxide emissions in the ground, leading to a net subtraction of the gas from the air - bioenergy with carbon capture and storage, or BECCS".

Global temperature is now rising 0.2C with each decade, and it is estimated we will reach 1.5C by 2040. Problematically, the effectiveness of the negative emissions techniques that would be relied upon in such a scenario is unproven on a large scale.

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.

"We're particularly concerned about the implications for coral reefs, with the report finding climate change will impact reefs across the world, including Australia", Ms Price said.

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Henn was actually responding to Penn State University climate scientist Michael Mann who was pushing back against those criticizing the IPCC report as too "alarmist" in its declarations and warnings.

When asked about the IPCC report, White House spokeswoman Lindsay Walters issued a statement touting the United States' leadership in providing affordable, abundant and secure energy while protecting the environment and reducing emissions through job-creating innovation.

Delaying action on climate change "is something that is explicitly contradicted in the report", he told the Thomson Reuters Foundation.

Increasingly, you don't have to convince Australian farmers of that.

The coalition of scientists and policy experts predict the average global temperature will hit the crucial threshold of 1.5C above pre-industrial levels by 2030.

Global Warming of 1.5 °C is the first in a series of Special Reports to be produced in the IPCC's Sixth Assessment Cycle.

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So how can we make sure that warming does not exceed 1.5°C and take us into highly unsafe territory? "And I think we need to be able to demonstrate collectively that Australians do deeply care about this and we want urgent action".

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