Published: Fri, October 12, 2018
Sci-tech | By Carrie Guzman

IPCC calls for far-reaching changes to fight global warming

IPCC calls for far-reaching changes to fight global warming

At 2 C, everything from melting sea ice to droughts, famines and floods will be significantly worse than at 1.5 C, the report says.

"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 policy relevance of the IPCC", said Hoesung Lee, Chair of the IPCC.

Ninety-one authors and review editors from 40 countries prepared the IPCC report in response to an invitation from the United Nations Framework Convention on Climate Change (UNFCCC) when it adopted the Paris Agreement in 2015.

While warming of 2C above pre-industrial levels has widely been thought of as the threshold beyond which unsafe climate change will occur, vulnerable countries such as low-lying island states warn rises above 1.5C will threaten their survival.

U.S. President Donald Trump says he hasn't read an ominous report by a United Nations panel that warned of a dire future for the planet if global warming is not kept to a minimum.

Sea level rises would be 10cm lower with a 1.5C temperature rise compared to 2C by the end of the century.

University of New South Wales climate scientist Sarah Perkins-Kirkpatrick says "virtually all" coral reefs would start dying off if global temperatures increased by 2C.

If Centre for Science and Environment (CSE) is anything to go by, the impact of 1.5 degree Celsius rise in temperature would have much more impact than it was thought and a rise in a couple of degrees would bring catastrophe for nations like India.

Limiting global warming would also give people and ecosystems more room to adapt and remain below relevant risk thresholds, added Pörtner.

The Nobel Prize-winning organisation said that the world was well off track in its goal of limiting global temperature rise to below 1.5ºC and heading for 2ºC or more. Lowering emissions to this degree, while technically possible, would require widespread changes in energy, industry, buildings, transportation and cities, according to the report.

US, Russia astronauts making emergency landing
NASA had issued a worrying tweet on Thursday morning saying: 'There's been an issue with the booster from today's launch. Search and rescue crews are on their way to the Soyuz capsule, and were likely to reach it by 11.30pm, NZ time.

Greenhouse pollution must be reduced by 45 per cent from 2010 levels by 2030 and 100 per cent by 2050. Global CO2 emissions may need to peak around 2020.

"There were doubts if we would be able to differentiate impacts set at 1.5C and that came so clearly".

The effectiveness of such techniques are unproven at large scale and some may carry significant risks for sustainable development, the report notes.

"It's a line in the sand and what it says to our species is that this is the moment and we must act now", Debra Roberts, cochair of a working group on the impacts of climate change, tells The Guardian.

"'This report gives policymakers and practitioners the information they need to make decisions that tackle climate change while considering local context and people's needs".

These so-called shared socioeconomic pathways (SSPs), which focus on mitigation of and adaptation to climate change, are a fairly new innovation and draw a new dimension to climate modeling: the impact of changes in human behavior. The Paris agreement committed to limit warming to well below 2 degrees, and pursue the even harder goal to limit it to 1.5 degrees.

Neither Premier Ford nor Mr. Kenney have yet said what policies they would employ to cut emissions, or whether they support Canada's objective of reducing greenhouse gas emissions by 30 per cent below 2005 levels by 2030 - a commitment made under the Paris accord.

There is a new report out from the Intergovernmental Panel on Climate Change (IPCC).

The IPCC report found that Australia was responsible for approximately 1 per cent of global emissions despite accounting for only 0.3 per cent of the global population.

Like this: