Key Issues and Concerns:

1. Inadequate ambition of some countries' climate commitments.
2. Developed nations have a strong responsibility to lead in reducing greenhouse gas emissions, but their NDCs must also account for the growth needs of developing countries.
3. The need for comprehensive and sectoral energy transition targets in the NDCs of developed countries.
4. The importance of phasing out all fossil fuels by mid-century.

Actionable Plans:

1. Developed nations should increase their ambition and commit to net-zero emissions or more rapid reductions.
2. Countries should submit revised NDCs with strengthened targets, including sectoral energy transition targets.
3. A global agreement on the phasing out of all fossil fuels by mid-century should be implemented.
4. The development of clean energy and energy efficiency standards should be promoted, especially in priority sectors.

Supporting Ideas:

1. Carbon capture and storage technologies can help reduce emissions from industrial sources.
2. Renewable energy and advanced nuclear power are crucial for reducing greenhouse gas emissions.
3. Climate-resilient agriculture and forestry practices can help mitigate the impacts of climate change on ecosystems and biodiversity.

Relevant Research Studies:

1. The UNEP Gap Report assesses the current country pledges and finds that the G20 countries must increase their ambition to meet global emission targets.
2. The International Energy Agency (IEA) report highlights the role of nuclear power in reducing emissions from the energy sector.
3. World Wildlife Fund's analysis shows that adopting renewable energy technologies could reduce global greenhouse gas emissions by up to 72\%.

Promising Solutions:

1. Implementing and scaling up clean energy technologies
2. Promoting climate-resilient agriculture and forestry practices
3. Implementing carbon capture and storage technologies to reduce emissions from industrial sources