Catastrophic consequences of inaction on limiting global warming: IPCC's Synthesis Report

The report is a scientific omnibus of the Working Group Reports that the IPCC has been releasing since last year. 

 

This is the fifth report of the IPCC. IPCC reports are considered the most authentic reports on the science and impacts of climate change.

 

Commenting on the report, Chandra Bhushan, deputy director general, Centre for Science and Environment (CSE), pointed out: “The report reiterates that extreme events have increased, global temperature has gone up (by 0.8oC), oceans are warming and acidifying, hydrological cycles have changed, and species have been affected.”

 

The report warned that failing to take rapid action will make future climate mitigation strategies difficult and expensive and put a heavier load on future generations.

 

The report commenced by stating that anthropogenic greenhouse gas emissions are the highest in history.

 

"Since 1970, total carbon dioxide emissions from fossil fuels and cement production have tripled while emissions from forestry and other land use have risen by about 40 per cent. The world will have to reduce its GHG emissions by 40 to 70 per cent by 2050 compared to 2010 and emissions levels near zero or below in 2100 to keep the global temperature rise below 2OC," the report stated.

 

It said the world will have to produce 80 per cent of its electricity from low carbon sources by 2050 and fossil fuels will have to be phased out by 2100.

 

The world will have to simultaneously work on adaptation and mitigation. Without additional mitigation efforts beyond those in place today, and even with adaptation, warming by the end of the 21st century will lead to high to very high risk of severe, widespread, and irreversible impacts globally, the report said.

 

"The report warns of mass die-off of forests, melting of land ice, rapid rise in sea levels that is linked to increases in coastal flooding and heat waves that have destroyed crops and killed thousands of people," it state.

 

According to the report, climate change will amplify existing risks and create new risks for natural and human systems. Developing countries and poor in developing countries are going to get disproportionately affected by climate change.

 

The report sounded a warning for food supply; it mentioned the strain on global production, adding that the strain would increase if emissions continue unabated.

 

It stated that actions to fight climate change are affordable, if they are taken early. Such action would result in reduction of annual global consumption of goods and services by only 0.06 per cent a year this century as compared to a potential annual growth of 1.6 to 3.0 per cent.

 

“The actions currently being taken by countries are not sufficient to limit temperature increase. Developed countries have failed to take lead in resolving this evolving crisis. Instead of reducing emissions developed countries have in fact increased their consumption-based emissions over the past 20 years,” said Chandra Bhushan.

 

Sunita Narain, director general, CSE said: “The IPCC report is a clear warning against inaction. However, it also says that the world can come together and take on this challenge. But the world can only come together if the global negotiations are based on the principles of fairness and equity.”

 

CSE’s analysis showed that a fair deal would require developed countries to reduce their emissions substantially by 2030. However, no developed country has announced an ambitious emission cut targets. The 40 per cent emissions cuts announced by the EU are just not sufficient. The US has done even worse. It has not announced any targets, but the boom in fossil fuel use in that country -- especially in the use of shale gas and oil -- is going to be a major obstacle for the US to put forth an ambition target.

 

Said Bhushan: “Agreements like the one reached at in Cancun, under which countries pledge what they want to do without providing an overall target, will not meet the goal of 2oC. Countries -- especially developed countries -- are once again promoting an agreement similar to the Cancun agreement for Paris. India is also supporting such an arrangement. But this will be disastrous.”

 

“India must take the lead in negotiations and push for an ambitious global goal. It also must take ambitious action itself,” he added.