In kyoto protocol, all nations agreed to reduce emission of green house gases by

Options

A. 2008
B. 2010
C. 2012
D. 2018

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Kyoto Protocol**: The Kyoto Protocol is an international treaty that was established to combat climate change by reducing greenhouse gas emissions. It builds upon the United Nations Framework Convention on Climate Change (UNFCCC) that was adopted in 1992.

2. **Purpose of the Protocol**: The main aim of the Kyoto Protocol is to commit state parties to reduce their greenhouse gas emissions. This is based on the scientific consensus that global warming is occurring and that human-made emissions, particularly CO2, are a significant contributing factor.

3. **Adoption and Agreement**: The protocol was first adopted by Japan in 1992. Over the years, it gained support, and by 2005, a total of 192 countries had agreed to participate in the efforts to reduce emissions.

4. **Timeline of Commitments**: The key point in the question is to identify the year by which all nations agreed to reduce their greenhouse gas emissions. The commitment period for the Kyoto Protocol was set to run until 2012.

5. **Conclusion**: Based on the information, the correct answer to the question "In Kyoto Protocol, all nations agreed to reduce emission of greenhouse gases by" is **2012**.

---