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Global Climate Change and Its Impacts

Second, the impacts of climate change are transboundary. Extreme weather events (such
as floods, droughts, and hurricanes), sea-level rise, and ecosystem degradation not only affect
individual nations but also trigger chain reactions in neighboring countries and globally. For
instance, droughts in the Horn of Africa have not only reduced local food production but also
caused cross-border migration and regional conflicts. The accelerated melting of Arctic sea
ice not only threatens ecosystems in the Arctic region but also profoundly influences global
climate by altering ocean circulation patterns.
Finally, addressing climate change requires global resource and technology sharing.
Developing countries face bottlenecks in funding, technology, and capacity-building when
responding to climate change, while developed nations possess abundant resources and tech-
nological reserves. Through cross-border collaboration, developed countries can provide
financial and technical support to developing nations, assisting them in achieving emission
reduction targets and adapting to climate change.
(2) Mechanisms of Cross-Border Cooperation
Cross-border cooperation in addressing climate change is primarily realized through the
following mechanisms:
1. International Climate Agreements
International climate agreements are one of the core mechanisms for cross-border co-
operation. The United Nations Framework Convention on Climate Change (UNFCCC) and
its subsequent protocols (such as the Kyoto Protocol and the Paris Agreement) provide legal
frameworks and cooperative platforms for global climate governance. These agreements
promote international collaboration on climate change by setting global emission reduction
targets, establishing funding mechanisms, and creating technology transfer systems. For
instance, the Paris Agreement introduced the Nationally Determined Contributions (NDCs)
mechanism, allowing countries to set emission reduction targets based on their national cir-
cumstances while ensuring coordinated and consistent global climate action through trans-
parency frameworks and long-term goals.
2. Funding Mechanisms
Funding mechanisms serve as crucial safeguards for cross-border cooperation. The Par-
is Agreement requires developed countries to provide developing nations with $100 billion
annually in climate finance starting from 2020 to support their mitigation and adaptation
efforts. This funding mechanism operates through platforms like the Green Climate Fund
(GCF), which delivers financial assistance to developing countries. Additionally,Multilateral
development banks (e.g., the World Bank and the Asian Development Bank) also support de-
veloping countries’ mitigation and adaptation actions through climate financing projects.
3. Technology Transfer and Cooperation
Technology transfer and cooperation are crucial components of cross-border collabo-
ration. Developed countries provide developing nations with clean energy technologies, en-
ergy-saving technologies, andCarbon captureand storage (CCS) technologies to assist them

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