Wednesday, 12 December, 2018

United Nations warns world must take "unprecedented" steps on global warming

Climate change,UN,UN report on climate change Landmark UN climate report warns time quickly running out
Sandy Nunez | 10 October, 2018, 02:43

In the 728-page document, the United Nations organization detailed how Earth's weather, health and ecosystems would be in better shape if the world's leaders could somehow limit future human-caused warming to just 0.9 degrees Fahrenheit (a half degree Celsius) from now, instead of the globally agreed-upon goal of 1.8 degrees F (1 degree C). Coral reefs would be devastated-about 70%-90% would be lost with a 1.5 degree increase; nearly all the world's reefs would be eviscerated if average temperatures rose by more than two degrees.

More than 2,500 were killed in India when temperatures reached highs of 48 degrees between May and June three years ago.

A much-anticipated report from the world's leading authorities on climate change has reignited a debate over the usefulness of the "carbon budget".

From the beginning of next year, a new global pact will take effect that could have a profound impact on climate change, cutting harmful greenhouse gas emissions by amounts that could help stave off some of the worst impacts predicted by the IPCC.

At 1.5 degrees, the authors predict the Arctic Ocean will be free of sea ice once per century.

The key benefits will come from "large-scale and rapid" transitions, the report said.

This little-noticed treaty has nothing to do with the Paris accord, the United Nations Framework Convention on Climate Change negotiations that have dragged on since 1992, or energy sector emissions, which have resumed their rise.

"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 ecosystems", said Hans-Otto Pörtner, Co-Chair of IPCC Working Group II.

Brent crude drops below $83 on expectations Iran will maintain some exports
"Some of our companies have already nominated their quota for November", said the Minister for Petroleum and Natural Gas to PTI. Of the 220.4 million metric tonnes (million MT) of crude oil imported by India in 2017-18, about 9.4% was from Iran.

"Even then we're probably going to have to implement different options that start taking carbon dioxide out of the atmosphere and storing it either underground or in trees or products".

Environmental campaign group 350.org said it is already taking collective action to ensure 50 Australian federal politicians receive personally delivered copies of the IPCC report.

World Wildlife Fund Australia campaigner Monica Richter said food waste is one area where consumer decisions can make an impact on global warming.

The newly published IPCC report highlights and compares the predicted severity of numerous climate change threats in scenarios with a 1.5°C, and 2°C temperature rise.

Using carbon capture and storage (CCS) technology, the share of gas-fired power would need to be cut to 8 percent and coal to under 2 percent.

"With more than 6,000 scientific references cited and the dedicated contribution of thousands of expert and government reviewers worldwide, this important report testifies to the breadth and policyrelevance of the IPCC", said Hoesung Lee, Chair of the IPCC. "Those pathways, at least in the special report, do not change with the updated carbon budget, as the calculations were done before the carbon budget was revised". If they act now, they can seize new opportunities from innovative technologies, rather than risk onerous costs as climate change makes previous business models unsustainable. The decision to eat less meat, particularly beef, and dairy products has been identified by researchers as making a bigger impact on lowering greenhouse gas emissions than reducing flights or buying an electric auto. It will be one of the main items discussed at a global conference in Poland in December, when governments will review the Paris Agreement (which the U.S. withdrew from in June 2017). Global net emissions of carbon dioxide would need to fall by 45 per cent from 2010 levels by 2030 and reach "net zero" around 2050.

A spokeswoman for the state department said the USA is "leading the world in providing affordable, abundant, and secure energy to our citizens, while protecting the environment and reducing emissions through job-creating innovation".

As climatologist Michael Mann told National Geographic, the more we can to prevent this temperature rise, the better.