The question asks to identify the number of true statements regarding the Intergovernmental Panel on Climate Change (IPCC) assessments.
IPCC Statements Analysis
Let's analyze each statement:
- Statement I: IPCC was established by UNEP and WMO
This statement is true. The IPCC was jointly established by the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO) in 1988.
- Statement II: IPCC directly enforces emission reductions
This statement is false. The IPCC's role is to conduct scientific assessments of climate change; it does not directly enforce policies or emission reductions. Member governments use IPCC reports to develop climate policies.
- Statement III: Fifth Assessment Report highlights rapid warming since 1950s
This statement is true. The IPCC's Fifth Assessment Report (AR5), published in 2013-2014, clearly highlighted the observed warming trend, particularly the rapid warming since the mid-20th century.
- Statement IV: IPCC provides a scientific basis for policymaking
This statement is true. The primary function of the IPCC is to provide policymakers with regular scientific assessments on climate change, its implications, and potential future risks, as well as options for adaptation and mitigation.
Conclusion on True Statements
Based on the analysis, statements I, III, and IV are true, while statement II is false.
Therefore, there are exactly 3 true statements.