The IPCC makes clear that there is still technically a path to the safer haven of a 1.5°C world. But there is little sign of the political will to embark on that trail, says adamvaughan_uk
, co-chair of the IPCC’s working group III, which produced this week’s report, says scientists are conscious that getting emissions to peak by 2025 and almost halve by 2030 represents a “big change of direction”. However, he adds: “What the report absolutely makes clear is that we’re not talking about business as usual if we are going to address the challenge of climate change. So we don’t look at the immediate past and say we expect that pattern to continue.
The report offers a bounty of ways to avoid business continuing as usual for emissions. Wind and solar power have the greatest potential when it comes to making cuts, with nuclear offering a much smaller supporting role. Meanwhile, we must switch from fossil fuels to electrification to heat buildings and power cars, scale up alternative fuels including, improve energy efficiency and implement carbon capture and storage in sectors such as heavy industry.
Reducing emissions isn’t just about technological fixes. “Demand-side strategies” – behaviour changes such as switching to more plant-based diets and flying less – could cut emissions by between 40 and 70 per cent in all sectors by 2050. Among the 60 actions that individuals could take to curb consumption, walking and cycling are identified as offering the biggest potential emissions reduction.
The IPCC also hints that the richest in society could deliver the biggest emissions cuts, if people curbed their consumption of goods and services. The 10 per cent of households worldwide with the highest per capita emissions are responsible for 45 per cent of all consumption-based household emissions.The good news is that in a world where money talks, many of the measures needed are cheaper than the cost of not acting.
The IPCC makes clear that there is still technically a path to the safer haven of a 1.5°C world. But there is little sign of the political will to embark on that trail. Last year,
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