Cut global emissions by 7.6 percent every year for next decade to meet 1.5°C Paris target

“We need quick wins to reduce emissions as much as possible in 2020, then stronger Nationally Determined Contributions to kick-start the major transformations of economies and societies. We need to catch up on the years in which we procrastinated,” she added. “If we don’t do this, the 1.5°C goal will be out of reach before 2030.”

G20 nations collectively account for 78 per cent of all emissions, but only five G20 members have committed to a long-term zero emissions target.

In the short-term, developed countries will have to reduce their emissions quicker than developing countries, for reasons of fairness and equity. However, all countries will need to contribute more to collective effects. Developing countries can learn from successful efforts in developed countries; they can even leapfrog them and adopt cleaner technologies at a faster rate.

Crucially, the report says all nations must substantially increase ambition in their Nationally Determined Contributions (NDCs), as the Paris commitments are known, in 2020 and follow up with policies and strategies to implement them. Solutions are available to make meeting the Paris goals possible, but they are not being deployed fast enough or at a sufficiently large scale.

Each year, the Emissions Gap Report assesses the gap between anticipated emissions in 2030 and levels consistent with the 1.5°C and 2°C targets of the Paris Agreement. The report finds that greenhouse gas emissions have risen 1.5 per cent per year over the last decade. Emissions in 2018, including from land-use changes such as deforestation, hit a new high of 55.3 gigatonnes of CO2 equivalent.

To limit temperatures, annual emissions in 2030 need to be 15 gigatonnes of CO2 equivalent lower than current unconditional NDCs imply for the 2°C goal; they need to be 32 gigatonnes lower for the 1.5°C goal. On an annual basis, this means cuts in emissions of 7.6 per cent per year from 2020 to 2030 to meet the 1.5°C goal and 2.7 per cent per year for the 2°C goal.

To deliver on these cuts, the levels of ambition in the NDCs must increase at least fivefold for the 1.5°C goal and threefold for the 2°C.

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