20220307-IMF-People_s_Republic_of_China—Hong_Kong_Special_Administrative_Region_Selected_Issues_28页_438kb

报告摘要

Summary of the Selected Issues Paper on Hong Kong SAR: Climate Change, Carbon Neutrality, and Low-Carbon Economy Transition

Core Content

This paper discusses Hong Kong SAR's efforts to address climate change, focusing on de-carbonization, adaptation, and transition toward a low-carbon economy. It highlights the progress made, challenges faced, and policy recommendations to support Hong Kong's commitment to achieving carbon neutrality by 2050.

Main Points and Key Information

A. Introduction

Climate change is a major threat to economic prosperity and well-being, with the IPCC estimating equilibrium climate sensitivity at 3°C.
The COP26 aims to limit global warming to 1.5°C or 2°C, but current emissions reduction efforts may not be sufficient to achieve this.
Hong Kong SAR has adopted a three-pronged strategy: mitigation of carbon emissions, adaptation to climate change, and enhancing resilience to climate-related risks.
The 2050 Climate Action Plan was updated in October 2021, setting more ambitious targets for carbon neutrality.

B. De-Carbonization Efforts

Overall Situation

Hong Kong SAR's carbon emissions have been on a downward trend since peaking in 2014.
In 2019, total emissions were 40.1 million metric tons of CO₂-equivalent, down from 44.6 million metric tons in 2014.
Per-capita emissions in 2019 were 5.3 metric tons, while consumption-based emissions were 2.5 times higher than actual emissions.
Electricity generation accounts for 66% of total emissions, with buildings being the main electricity consumer (90% of total consumption).
Transportation is the second-largest source of emissions, contributing 18%, followed by waste (7%), other fuel use (5%), and industrial processes (4%).

Mitigation Strategy

The 2050 Climate Action Plan aims to achieve carbon neutrality by 2050.
Key de-carbonization measures include:
- Phasing out coal-fired electricity by 2035.
- Increasing renewable energy share from <1% to 7.5-10% by 2035, and further to 15% after.
- Developing waste-to-energy facilities and promoting recycling and waste reduction.
- Implementing energy efficiency standards for buildings and appliances.
- Encouraging green transportation, including electric vehicles (EVs) and public transport.

Climate Budget and Policy

The government plans to allocate HK$240 billion over 15-20 years to support mitigation and adaptation.
A Steering Committee on Climate Change and a new Office of Climate Change and Carbon Neutrality have been established to enhance coordination.
The government is promoting technology and innovation, capacity building, and public engagement in low-carbon initiatives.

Challenges

Some targets remain unmet, such as the 2020 carbon intensity reduction.
Technology development (e.g., green hydrogen, reliable EV engines) is critical but uncertain.
Old buildings pose a challenge for improving energy efficiency due to structural and legal issues.
Private car growth increases traffic congestion and emissions.

C. Adaptation to Climate Change

Challenges Posed by Climate Change

Hong Kong SAR is vulnerable to rising sea levels, extreme weather events, and temperature increases.
The urban heat island effect increases urban temperatures, affecting health and energy consumption.
Storm surges, floods, and landslides are expected to become more frequent due to climate change.
Water resource risks are also highlighted, especially in extremely dry years.

Adaptation and Resilience Efforts

The government is focusing on infrastructure resilience and societal preparedness.
Coastal protection strategies are being developed to mitigate flood risks.
A three-pronged flood prevention strategy includes stormwater interception, flood storage, and drainage improvement.
Slope safety systems are being strengthened to reduce landslide risks during heavy rain.
The financial sector is at risk due to physical climate risks, such as property damage and equity price fluctuations.

D. Transition Toward a Low-Carbon Economy

Key Issues

Green and sustainable finance is crucial for supporting the transition and addressing climate-related financial risks.
The government should consider carbon pricing mechanisms, such as progressive electricity tariffs and mileage-based vehicle taxation, to incentivize low-carbon behavior.
Feebate schemes could be introduced to shift the relative prices of green and carbon-intensive activities.
The 2023 waste charges are an example of such measures, aiming to reduce waste-related emissions.
Financial stability must be safeguarded against both physical and transition climate-related risks.

E. Conclusion

Hong Kong SAR has made significant progress in reducing carbon emissions and is relatively advanced compared to international peers.
Continued efforts are needed to achieve carbon neutrality by 2050, especially in the areas of renewable energy, energy efficiency, and green transportation.
Climate adaptation and resilience are essential to address the physical impacts of climate change.
A strong green finance ecosystem can support global efforts in mobilizing private sector investment and enhance financial stability.