Understanding the Kyoto Protocol

The Kyoto Protocol is an international treaty that extends the 1992 United Nations Framework Convention on Climate Change (UNFCCC). Its main goal is to reduce greenhouse gas emissions globally. Countries that ratify the Kyoto Protocol commit to reducing their emissions of certain greenhouse gases.

Kyoto Protocol's First Commitment Period Target

The Kyoto Protocol defined specific targets for industrialized countries for its first commitment period, which ran from 2008 to 2012. During this period, these countries aimed to collectively reduce their emissions of certain greenhouse gases by an average of 5.2% below their 1990 levels.

Targeted Greenhouse Gases in the First Commitment Period

The first commitment period of the Kyoto Protocol focused on reducing emissions of a specific set of greenhouse gases known to contribute significantly to global warming. The protocol identified and targeted a total of six such gases.

These six targeted greenhouse gases are:

• Carbon dioxide ($\text{CO}_2$)
• Methane ($\text{CH}_4$)
• Nitrous oxide ($\text{N}_2\text{O}$)
• Hydrofluorocarbons (HFCs)
• Perfluorocarbons (PFCs)
• Sulphur hexafluoride ($\text{SF}_6$)

Countries committed to managing and reducing the total emissions of these six gases, often calculated as a CO2 equivalent based on their global warming potential.

Analyzing the Options

The question asks for the number of greenhouse gases targeted for reduction by 5.2% from 1990 levels during the first commitment period of the Kyoto Protocol.

• Option 1: 6 - This number corresponds exactly to the six greenhouse gases listed in the Kyoto Protocol for the first commitment period.
• Option 2: 8 - This is more than the number of gases targeted in the first period.
• Option 3: 10 - This is also more than the number of gases targeted in the first period.
• Option 4: 7 - This is different from the number of gases targeted in the first period.

Based on the specific details of the Kyoto Protocol's first commitment period, the correct number of targeted greenhouse gases is six.

Revision Table: Kyoto Protocol First Commitment Period

Additional Information on Climate Agreements

While the Kyoto Protocol was a significant step, climate negotiations have continued. The second commitment period (2013-2020) under the Doha Amendment added Nitrogen Trifluoride ($\text{NF}_3$) to the list, making it a total of seven gases for participating countries. However, the first commitment period specifically covered six gases.

The Paris Agreement, adopted in 2015, succeeded the Kyoto Protocol and introduced a new framework where all countries, both developed and developing, set their own emissions reduction targets (Nationally Determined Contributions - NDCs) with the goal of limiting global warming to well below 2 degrees Celsius above pre-industrial levels, and pursuing efforts to limit it to 1.5 degrees Celsius. The Paris Agreement covers all anthropogenic emissions and removals of greenhouse gases not controlled by the Montreal Protocol.

Understanding the specifics of each international agreement, like the number of targeted gases in the Kyoto Protocol's first commitment period, is crucial for studying climate policy.