Now or never to rein in emissions: IPCC third report perspectives on Asia Pacific

Now or never to rein in emissions: Highlights from IPCC third report and implications in Asia Pacific

By Lit Ping Low

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  • The average annual greenhouse gas (GHG) emissions during 2010-2019 were the highest in history. Asia Pacific’s share of global emissions is increasing, most of it from urban centres. 

  • Global warming is predicted to reach 3.2°C by the end of the century if we don’t strengthen current policies. Further delay in climate transition can be severely disruptive for Asia Pacific.

  • Companies and regulators in Asia Pacific are acting on climate change and opportunities exist to scale up climate mitigation solutions and technologies.

The Intergovernmental Panel on Climate Change (IPCC) has recently released the third section of the Sixth Assessment Report (AR6) by Working Group Three (WGIII) on the mitigation of climate change.

Prior to its public release, government representatives and scientists were locked in intense negotiations on how to phrase its key points, as the report contained some of the most difficult messages to deliver within the IPCC series. 

What it says, and doesn’t say, will lend weight to climate discussions and negotiations (in forums such as COP27) as well as how much and how fast governments and businesses are likely to act.

Here are three key takeaways for government and business in Asia Pacific to consider and act upon from this recent WGIII report.

1. An increasing share of global emissions will come from Asia Pacific, especially from urban centres

The report reveals that human-induced climate change is widespread, rapid, and intensifying. The average annual GHG emissions during 2010-2019 were the highest in history. 

Asia Pacific’s share of global emissions has seen an increase from 35% in 2010 to 39% in 2019. This can be attributed to a few factors:

  • The region has become a global manufacturing hub. This poses a challenge for many territories around how to manage production-based emissions while manufacturing goods for global consumption.

  • Rising income levels. Although the consumption-based emissions in Asia Pacific’s developing economies remain comparatively lower than other developed markets, the region accounts for 52% of the current global population and includes the fastest growing economies in the world, with a rising middle class.

  • Rapid growth in Asia Pacific cities. Around 70% of global GHG emissions are produced in cities and urban areas. Urban land areas are expected to triple between 2015 and 2050, and most are forecasted to be in developing Asia Pacific territories

Regional production-based and consumption-based emissions accountings (tCO2FFI per person)

Eastern Asia

South East Asia and Pacific 

Australia, Japan, New Zealand

North America


Production-based emissions






Consumption-based emissions






Source: IPCC WGIII report, the regional groupings used in this figure are for statistical purposes only and are described in Annex II, Part I of the IPCC Report

Reimagining urban areas CO2 emissions will be crucial in climate transition policy, as how cities grow in prosperity without growing in emissions will likely make or break the 1.5°C goal.

2. Increased likelihood of a delayed transition in Asia Pacific can be severely disruptive  

The report underscores that this is a decisive decade to restrict warming, where the gap remains significant to limit global warming to 1.5°C. A key graphic in the report summarizes this well (see chart below). 

  • Without strengthening policies beyond those implemented in 2020, GHG emissions will continue to rise [red line], with median global temperature projected to reach 3.2°C by the end of the century. 

  • The emissions pathway based on the latest Nationally Determined Contribution (NDC) policies [purple line] will remain significantly above both the 2°C and 1.5°C pathways [green and blue line] over the coming decade (2020 - 2030). 

  • Trying to ‘force’ the pathway down towards the 1.5°C or 2°C scenario means rapid acceleration of mitigation efforts required from 2030 onwards [purple line].

  • It will be harder after 2030 to limit global warming to below 2°C

Chart: Projected global GHG emissions 
Projected global GHG emissions

Source: IPCC WGIII report (simplified)

The longer we delay emissions reductions, the more difficult it will be to stay within the 2°C target. This delayed transition risk can be more pronounced for Asia Pacific for two reasons: 

  • The burden of emissions reduction will increasingly shift from the developed West to Asia Pacific, as consumption-based emissions rise, and urban areas grow. There are strong risks of being locked into future urban GHG emissions if we do not drive net zero emission pathways for urban areas. 

  • The relatively slower pace to act. In Code Red - Asia Pacific’s Time To Go Green, we counted fewer than 25% of Asia Pacific governments that have a firm net zero commitment. Many governments are still navigating, and perhaps, in the early stages of planning and considering the appropriate actions to meet societal expectations. 

The combination of bearing higher burden and being a later mover means that governments and businesses in the Asia Pacific region could bear a disproportionate amount of risks in delayed transition scenarios, and face the brunt of the most disruptions.

3. Window of opportunity for Asia Pacific to lead global climate action

Despite the lack of concerted policy targets, there is evidence that more businesses and regulators are acting. We find in PwC’s 25th Global Annual CEO Survey - Asia Pacific that Asia Pacific CEOs are ahead of global peers in net zero and carbon-neutral commitments: 

  • 60% of respondent companies have made, or are progressing towards, a net zero commitment (vs. 51% globally)

  • 77% have had their target setting approach independently assessed and validated (vs. 66% globally)

Other sources also corroborate with our finding, for example:

  • There are more than 600 companies within Asia Pacific that have signed up to the Science Based Targets Initiative (SBTi). 

  • The latest Task force on Climate-Related Financial Disclosure (TCFD) Status Report shows that 42% of Asia Pacific companies who adopted TCFD reporting in 2020 have measured their Scope 1, 2 and 3 emissions. Although this is still behind European companies (at 64%), it is significantly ahead of other regions.

TCFD has also helped regulators and markets in Asia Pacific to spearhead better climate disclosure. Hong Kong, Japan, New Zealand and Singapore are just a few early movers on mandatory climate risk disclosure; China, Indonesia, Malaysia and others are closely following suit.

Scaling up climate mitigation solution and investment 

Markets and technologies have been in favour of carbon reduction in the last decade. Unit costs of solar energy and wind energy have fallen by more than half over 2010-2019. This led to larger scale deployment of renewable energy, with around 10% of global electricity production. 

Reallocation of investment flows are expected to continue as industries consider options that can offer substantial potential emission reduction. Many options available now in all sectors are estimated to offer substantial potential to reduce net emissions by 2030. Relative potential and cost will vary across countries and in the longer term compared to 2030.

Chart: Emission reduction options (tools) for selected industries 
Chart: Emission reduction options (tools) for selected industries

Source: IPCC WGIII report (simplified)

While uncertainties remain, Asia Pacific will play a role in these developments. For example, research on the green hydrogen economy estimated that global hydrogen production costs will decrease by around 50% through 2030. By 2050, green hydrogen production costs in some parts of the world including China, Indonesia and Australia will be in the range of €1 to €1.5/kg.

Regional cooperation can also help scale up technology in cost effective ways. The multi-billion “clean energy project development agreement” to connect solar power in the north of Australia to Singapore and eventually Southeast Asia is one example. 

There are major risks in the failure to act on climate change. For Asia Pacific economies, this is not just about the physical risks but also the transition risks, particularly in a delayed transition scenario. But the opportunities to act are also promising in the region for businesses, both in terms of managing its own net zero transition but also capitalising on the emergence of new and developing low carbon technologies.

Contact us

Ivy Kuo

Ivy Kuo

PwC Asia Pacific Sustainability Leader, Partner, PwC China

Lit Ping Low

Lit Ping Low

Asia Pacific Sustainability, Climate Change Partner, PwC Hong Kong

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