Scientist warning over climate change and global warming - CBBC Newsround

  • Scientist warning over climate change and global warming - CBBC Newsround

Scientist warning over climate change and global warming - CBBC Newsround

At the Paris Climate Agreement in 2015, worldwide leaders agreed to keep global warming "well below 2°C above pre-industrial levels" with the hopes to limit this to just 1.5°C.

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.

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

Climate scientists are not known for giving good news, and the UN's Intergovernmental Panel on Climate Change that convened in South Korea was no exception: the scientists that compiled a special report on the climate situation on the planet slapped optimists in the face: the world needs to spend US$2.4 trillion every year until 2035 to slow down the effects of climate change. But while they are present, they can have a greater impact: Some HFCs have a global warming potential more than 11,000 times greater than that of carbon dioxide.

If 1.5 degrees of warming does occur, Southeast Asian countries like Indonesia, the Philippines, and Vietnam, including countries like Japan, China, Egypt, and the USA will experience increased flooding by 2040.

To have a chance of meeting the 1.5 degrees goal, climate-changing emissions would have to plunge 45 percent by 2030 compared to 2010 levels, the report said.

This report says that the world doesn't have to come up with some magic machines to curb climate change - we've already got all the tech we need.

The report will provide the framework of discussion for the Katowice Climate Change Conference in Poland in December when governments review the Paris Agreement to tackle climate change.

Action in cities - which consume more than two-thirds of energy globally and account for about three-quarters of carbon emissions - are pivotal to meeting the target, said report author William Solecki, a professor at Hunter College-City University of NY.

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

A recent report, before the IPCC publication, by Oxfam and the World Resources Institute found that reducing SLCPs warranted a much greater focus than it has received in climate change efforts. Emissions per capita in Australia are at their lowest level in a decade'. Limiting the warming to 1.5 degrees Celsius can, for example, cut many impacts in half, including those of fresh water shortage and losses of many species and of ocean fish catch.

To limit temperature from hitting 1.5ºC or overshoot.

"Such large transitions pose profound challenges for sustainable management of the various demands on land for human settlements, food, livestock feed, fibre, bioenergy, carbon storage, biodiversity and other ecosystem services", the report stated. Even that more modest goal is out of reach for now despite plans such as the controversial national carbon price, making buildings more energy efficient and eliminating coal as a source of electricity by 2030. "If we changed to fulfil health recommendations, we'd all live longer and bounce around much more and have nicer lives and we'd also reduce greenhouse gas emissions". And carbon dioxide emissions must reach net zero around 2075 - meaning the amount of carbon dioxide entering the atmosphere equals the amount being removed.

"We have a monumental task in front of us, but it is not impossible", Mahowald said earlier.

Rachel Kennerley, climate campaigner for Friends of the Earth, said: 'Just like ignoring credit card statements so that repayments only become sharper and steeper, this report shows that weak responses will make it harder in the long-run.