【COP30 Side-Event】Passive Design, Construction, and Cooling for a Hotter Planet
Day：2024.11.05
event ｜
Person in charge
| Name | Organization | Position |
| Makoto Kanagawa | JICA | Senior Director, Infrastructure management Department |
Overview
Date：11/15/2024
Host：United Nations Environment Programme, Global Alliance for Buildings and Construction (GlobalABC), Cool Coalition
Location (Name of Pavilion)：International Development Finance Club Pavilion
Moderators and panelists
| Name | Organization | Position |
| Chuop Paris | Ministry of Environment, the Kingdom of Cambodia | Secretary of State |
| Shibata Kazunao | Japan International Cooperation Agency (JICA) | Deputy Director-General, Group Director for Environmental Management and Climate Change, Global Environmental Department |
| Luong Quang Huy | Ministry of Agriculture and Environment, Government of Viet Nam | Head of Division of GHG Emission Management and Ozone Layer Protection, Department of Climate Change |
| Calvin Chong | Ministry of Sustainability and Environment, Government of Singapore | Divisional Director (Energy & Climate Policy) |
| Zulfikar Yurnaidi | ASEAN Center for Energy | Head of the Energy Modeling and Policy Planning Department |
| HY William Chan | ICLEI and former Sydney City Councillor and Chair of Transport, Heritage, Environment and Planning, Australia | Special Advisor |
| Monserrat Bodadilla | EBP Chile | Co-director CEELA |
| Hubert Nsoh Zan | Energy Commission of Ghana | Assistant Manager |
| * Gennai Kamata | United Nations Environment Programme | Associate Programme Officer |
Primary objectives and outcomes
As the year 2024 has become the hottest year on record and global temperatures continue to rise, passive cooling - which enables energy-efficient, comfortable, and healthy home construction with minimal reliance on mechanical air conditioning - is currently gaining worldwide attention. Mechanical air conditioning already accounts for 7% of global greenhouse gas emissions, and without intervention, emissions could reach 6.1 billion tons of CO2e by 2050, potentially accounting for more than 10% of global emissions. This trend is particularly occurring in emerging and developing countries experiencing urbanization and population growth. According to UNEP-hosted Cool Coalition, implementing passive cooling strategies that minimize dependence on air conditioning could reduce cooling demand by 24% by 2050, save $1.5-3 trillion USD in new equipment costs, and cut emissions by 1.3 billion tons. In 2024, the UN Secretary-General issued the "Call to Action on Extreme Heat," calling for the global promotion of passive cooling. At COP28, more than 70 countries including Japan endorsed the Global Cooling Pledge, emphasizing the importance of passive cooling. Additionally, in 2024, more than 70 countries confirmed through the Declaration de Chaillot their commitment to promoting international cooperation aimed at advancing passive cooling. This session will bring together government representatives and design practitioners from various countries to share knowledge and accelerate the adoption of passive cooling.
Content of the discussions
Keynote speeches and panel discussions were held by representatives from countries actively pursuing passive cooling initiatives in developing nations. JICA presented a case study from SATREPS: “Development of Low-Carbon, Affordable Multi-Unit Housing in Indonesia's Hot and Humid Climate towards the 2030 Paris Agreement Targets”, introducing its passive cooling demonstration project in Indonesia. It announced the successful development of an energy-efficient, comfortable natural ventilation system through thermal simulations of model housing, with these findings now aimed to be incorporated into the country's design standards and guidelines. It also presented the social implementation case where climate classification mapping, developed through the collection and analysis of Indonesia-specific climate data, was officially adopted by the Indonesian government. Furthermore, it was reported that JICA participates in the ASEAN Passive Cooling Advisory Group, led by the United Nations Environment Programme and the ASEAN Centre for Energy (ACE), actively contributing to the development of the ASEAN passive cooling roadmap while sharing its findings in Indonesia. JICA emphasised its commitment to promoting passive cooling and contributing to green, resilient and inclusive building and urban development. Other speakers also commented that passive cooling should become the new normal to address climate change, reaffirming the importance of JICA's support in this area.
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