'Huge changes needed to reduce global warming'

Landmark UN climate report warns time quickly running out

"What could go wrong?"

The US$2.4 trillion that the climate change panel has calculated as necessary investments is nearly seven times more than that.

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.

This is especially true when reducing short-lived climate pollutants, such as methane and black carbon, which simultaneously cuts down on air pollution and mitigates health threats such as asthma and other respiratory diseases.

So can the report and its coverage actually contribute towards making the changes it implicitly demands of us urgent and extensive?

Key points in the report include maintaining the current global temperature at 1.5ºC.

"You don't want to live in a 2°C world", Hunter Cutting, Director of Strategic Communications at Climate Nexus who observed the IPCC plenary, told IFLScience.

Coral reefs that provide food and livelihoods to an estimated 500 million people worldwide are particularly hard hit.

Meanwhile, humankind continues to pump heat-trapping carbon dioxide into the atmosphere at a tragically self-destructive rate.

So far, average temperatures have risen by one degree Celsius. At 2 degrees, that will be more like once per decade. "And there are tremendous benefits in limiting it to 1.5 degrees Celsius in terms of eradicating poverty and achieving sustainable development".

In reality, it seems far more likely that the world will "overshoot" the 1.5 degree mark, causing irreversible harm. Under the 1.5-degree scenario, up to 69 million people will be newly exposed to flooding. Global sea levels rose 17cm in the 20th century.

Please don't dismiss all of this as just another boring compendium of carefully hedged facts and figures.

EIA pinned that drop on a shift away from coal in the energy sector to lower emission and more efficient natural gas and renewables, all while electricity sales have dropped across the country as milder weather - cooler summers and warmer winters - settled in, according to EIA.

"Many parts of the world will see mean temperature increases that, in time, will be higher than 1.5°C, including the South West of Western Australia", Dr Kala said. It has a scientific robustness that shows 1.5°C is not just a political concession.

The IPCC suggests the transport carbon footprint could be reduced through people opting to use public transport auto sharing arrangements and hybrid or electric cars instead of planes and motor vehicles.

The report does describe how much more serious climatic impacts will be if the world lets warming reach 2 degrees Celsius above pre-industrial levels. Yet past year, according to the International Energy Agency, global emissions hit an all-time high.

The EU is committed to the Paris Agreement and is implementing ambitious policies.

The United States was initially in the agreement, but President Donald Trump pulled the country out a year and half later, claiming it was unfair to the country. But Scheer said his party remains adamantly opposed to a carbon tax, which he does not think will actually reduce emissions, and instead revert back to the regulatory approach taken by the former Conservative government.

"From 2005 to 2017, U.S. CO2-related emissions declined by 14 percent while global energy-related Carbon dioxide emissions rose by 21 percent during the same time", she wrote. But Trump administration policies are created to reverse that trend; and if they fail to do so, it will be because rest of the world is already moving toward clean energy - a huge economic shift that threatens to leave the United States behind. Because I can give you reports that are fabulous and I can give you reports that aren't so good. Climate change is moving faster than we are....

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