The scariest parts of the new climate change report

Without real change, the world is not even on course to reach the 2C target, according to the Intergovernmental Panel on Climate Change (IPCC) report, the main scientific guide for governments on how to implement the Paris Agreement.

"The government will take into account. the recommendations of the [council] and. the IPCC's special report to draw up Hong Kong's long-term decarbonisation strategy up to 2050 by the end of 2019 or early 2020", the spokesman said. If not, the researchers say, the threat to people, ecosystems and sustainable development will rise to irreversible levels.

"This is one of the most important reports ever produced by the IPCC, and certainly one of the most needed", Hoesung Lee, the chair of the body, said at a press conference in South Korea on Monday.

The world has already warmed 1 degree C since pre-industrial times, so the talk is really about the difference of another half-degree C or 0.9 degrees F from now.

The IPCC calls for massive investments in renewable energy to meet climate-change goals, claiming that avoiding a catastrophe will involve "annual average investment needs in the energy system of around $2.4 trillion" between 2016 and 2035.

Chinese scientist Panmao Zhai is a leader of the research.

Scientists have long warned that mankind should limit warming to 2 deg C to avoid catastrophic climate change.

The IPCC report makes clear for the first time that limiting warming to 1.5 degrees requires cutting short-lived super climate pollutions-black carbon, methane, and hydrofluorocarbons-along with carbon dioxide, as well as learning how to pull carbon dioxide out of the atmosphere at scale. Emissions of other greenhouse gases, such as methane, also will have to drop.

The 1.5-degree scenario will require cutting Carbon dioxide emissions by as much as 45 percent over the 20-year period from 2010 to 2030 and to a net zero by 2050-net zero meaning that all Carbon dioxide released will need to be captured and stored or reused. It would speed the melting of the Arctic sea ice, causing islands to disappear under rising seas.

The US$2.4 trillion that the climate change panel has calculated as necessary investments is nearly seven times more than that. If we hit 2 degrees of warming, the effects will be even worse.

The bad news stemmed from the fact that climate change's impacts are now being understood more clearly. and the results were worse than expected. "It's going to take a reimagining of how the world is constructed around us and we are lacking imagination". However, the damage is already done in so many fragile ecologies.

Another SLCP is methane, produced when vegetation rots and from animals, and in the form of natural gas from fossil fuel exploration. The International Energy Agency estimates that only 4 percent of transportation energy comes from renewable sources and anticipates that number will increase by only 1 percent by 2022.

If people want to do something about it, Green said, they can "vote for people with a real climate change agenda". Fundamentally, we need to change the politicians in Washington. When water heats up, it expands meaning when oceans likely continue to rise, the IPCC says, we can expect the oceans to rise between 28 to 98cm by 2100, enough to swamp numerous cities along the USA east coast.

The Washington Post: The World Has Just Over A Decade To Get Climate Change Under Control, U.N. Scientists Say - "The radical transformation also would mean that, in a world projected to have more than 2 billion additional people by 2050, large swaths of land now used to produce food would instead have to be converted to growing trees that store carbon and crops designated for energy use". He says this is a major task. While the United Nations panel says technically that's possible, it saw little chance of the needed adjustments happening. Hai Do was the editor.

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