Consider the following statements:

1. Climate and Clean Air Coalition (CCAC) to Reduce Short Lived Climate Pollutants is a unique initiative of G20 group of countries.

2. The CCAC focuses on methane, black carbon and hydrofluorocarbons.

Which of the statements given above is/are correct?

The correct answer is 2 only.

Let us analyze each statement carefully:

Statement 1: "Climate and Clean Air Coalition (CCAC) to Reduce Short Lived Climate Pollutants is a unique initiative of G20 group of countries."

This statement is incorrect. The CCAC is not an initiative of the G20 group of countries. It is a voluntary partnership of governments, intergovernmental organizations, businesses, scientific institutions, and civil society organizations. It was launched in February 2012 by six founding countries — Bangladesh, Canada, Ghana, Mexico, Sweden, and the United States — along with the United Nations Environment Programme (UNEP). It is a global initiative open to any country or organization willing to commit to reducing short-lived climate pollutants (SLCPs). It has no exclusive or special link to the G20 grouping.

Statement 2: "The CCAC focuses on methane, black carbon and hydrofluorocarbons."

This statement is correct. The CCAC specifically targets Short-Lived Climate Pollutants (SLCPs), which include:

• Methane (CH₄) — a potent greenhouse gas produced from agriculture, fossil fuel operations, and waste.
• Black Carbon — a component of fine particulate matter (soot) produced by incomplete combustion of fossil fuels and biomass.
• Hydrofluorocarbons (HFCs) — synthetic gases used in refrigeration and air conditioning, with very high global warming potential.
• Tropospheric Ozone — also sometimes included in CCAC's scope as an SLCP precursor.

The primary three pollutants prominently highlighted by the CCAC are indeed methane, black carbon, and hydrofluorocarbons, making Statement 2 accurate.

Conclusion: Since Statement 1 is incorrect (CCAC is not a G20 initiative but a broader global voluntary coalition) and Statement 2 is correct, the answer is 2 only.