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5 CCLR 147 (2011)
Climate Change Law and Regime Interaction

handle is hein.journals/cclr2011 and id is 155 raw text is: CCLR 2~2011                                           Climate Change Law and Regime Interaction    147

Climate Change Law and Regime Interaction
Margaret A. Young*
The central international legal regime addressing climate change mitigation is the
United Nations Framework Convention and its associated instruments. However, multi-
ple international laws from other regimes, such as trade laws, are relevant: both because
they are implicated in climate change and because they contain potentially useful tech-
niques for the development of a low-carbon economy. This fragmented body of inter-
national law holds key challenges for governance. Interaction between relevant regimes
is stymied due to disparities in state-membership and closed and inaccessible decision-
making. Drawing on insights from other areas of international law, the article argues
that information exchange, inter-agency learning, experimentation, expert consultation,
peer review and stakeholder participation are essential for climate change governance.

I. Introduction
The laws relating to climate change come from        a
range of existing international frameworks of
treaties,  institutions   and    procedures.    These
regimes include the United Nations Framework
Convention on Climate Change (UNFCCC) and its
associated  instruments, the     international trade
regime, the heritage protection regime, the law of
the sea regime, and environment regimes such as
the Convention on Biological Diversity. This plural-
istic and diverse set of rules and institutions is part
of the general phenomenon of the fragmentation of
international law, which has attracted the attention
of those who seek to resolve predicted conflicts
between international norms. However, many of
the obligations of states that relate to climate
change mitigation are not prima facie conflicting,
but are rather overlapping or distinct. As such, the
focus in climate change governance will not be on
the conflict of norms, but rather on the existence
and nature of fruitful interaction between existing
Senior Lecturer, University of Melbourne Law School. The article
has benefited from presentation and discussion at the Climate
Change Governance after Copenhagen conference jointly
organised by the Faculties of Law of the University of Hong Kong
and University College London, 4-5 November 2010. An earlier
version was presented at the Society of International Economic
Law Conference in Barcelona, Spain, on 9 July 2010. The article
forms part of a broader research project on regime interaction in
international law.

regimes in order to promote efforts for effective
climate change mitigation.
This article provides an overview of select inter-
national laws relating to climate change, and exam-
ines common responses to the challenges brought
by the fragmentation of international law, as set out
especially in the seminal 2oo6 study by the Inter-
national Law Commission (ILC). It then considers
alternative responses to fragmentation, and out-
lines a research agenda that focuses on institutional
and normative interplay in situations of ongoing
diversity and overlap in climate change gover-
nance. Regime interaction in climate change gover-
nance draws on a range of principles and processes,
and requires a reconception of the role of many
actors, which include but are not limited to states.
Intergovernmental organisations (IGOs) and their
secretariats, non-government organisations (NGOs)
and their members, and a range of participants
affected by climate change issues, are argued to be
central in promoting inter-regime learning, deliber-
ation, cross-forum governance and stakeholder par-
ticipation in the meeting of relevant regimes.
II. Multiple Laws relating to Climate
Change
There are multiple sources and effects of climate
change, and there are multiple ways to mitigate it.
Legal responses have developed within particular

CCLR 212011

Climate Change Law and Regime Interaction   147

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