Breaking the 2 Degree Habit: Why 1.5 Is Critical


The IPCC met in Incheon, South Korea last week to finalize the report's findings. This impacts agriculture across the world and a global temperature rise of 2C means that the global yield of wheat across existing farmland would entirely be wiped out.

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.

Areas like sub-Saharan Africa and the Mediterranean would still suffer from droughts, but farms would be able to grow more food than they could with 2 degrees of warming.

EU Climate Action and Energy Commissioner Miguel Arias Cañete and Research, Science and Innovation Commissioner Carlos Moedas welcomed the report by the United Nations body, which provides policy-makers across the globe with a strong scientific basis for their efforts to modernise the economy, tackle climate change, promote sustainable development and eradicate poverty.

It's believed to be the largest peer-review exercise in the world, as has been noted by an IPCC spokesperson.

Additional Secretary of the Environment Ministry AK Mehta said India is already facing climate change impacts.

He said: 'We know what is needed to limit global warming to 1.50C and we can do it relying mostly on proven technologies such as decisively scaling up renewable energy and halting deforestation.

According to a report released by Britain-based Christian Aid, coastal cities like London, Houston, Jakarta and Shanghai are set to become extremely vulnerable to storm surges and flooding.

One key fact was that by the year 2100, global sea level rise would be as much as 10 cm lower with with an increase of 1.5°C compared to 2°C.

However, that changed in 2017 with a 1.4 per cent increase in emissions from China.

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The recent floods in Kerala displaced more than 700,000 people and caused close of 500 deaths.

At the same time, the IPCC also explained that warmer temperatures will have a negative effect on the GDP of the most affected nations and regions.

Countries must take "unprecedented" action to slash carbon emissions to zero by 2050 and limit unsafe global warming, a key report has warned. It's intended as a guide for policymakers who are aiming to limit temperature rise to the target 1.5 degrees Celsius.

The climate accord seeks to cap increases in the average global temperature below 2 degrees Celsius, or 3.6 degrees Fahrenheit, previously regarded as the warming point of no return in terms of certain environmental catastrophe.

Transportation: In order to meet the 1.5C goal, the IPCC envisages a future where people travel less, and that generally consumer preferences shift to more sustainable choices like auto sharing and hybrid and electric cars.

Temperatures are now about 1° C higher than preindustrial levels. However, the damage is already done in so many fragile ecologies.

The likelihood of an Arctic Ocean free of sea ice in summer would be once per century with global warming of 1.5 °C, compared with at least once per decade with 2 °C.

This means that weaning off coal and fossil fuels could not only help reduce carbon emissions and help limit the global temperature rise but also result in economic benefits. The report calls for higher taxes on carbon dioxide emissions to shift behaviour, nominating a price of US$27,000 per ton by 2100 but there has been significant political opposition to such taxes, particularly from the U.S., the world's second-largest greenhouse gas emitter after China.

"We are still going to see many challenges at 1.5°C".