Here is a summary of the article with potential solutions:

Key Challenges:

1. Developed countries' lack of ambition in their Nationally Determined Contributions (NDCs)
2. Inadequate targets for reducing greenhouse gas emissions
3. Insufficient commitment to phase out fossil fuels and transition to clean energy

Potential Solutions:

1. Developed Countries Lead the Way: They should set ambitious NDCs that would compensate for the global emission gap.
2. Global Energy Transition Targets: Countries should agree on sectoral energy targets, including full power sector decarbonisation by 2035 and commitments to phase out coal by 2030.
3. Renewable Energy and Efficiency: Global leaders must reaffirm their commitment to the outcomes of COP28 last year, which includes:

• Tripling renewable energy
• Doubling energy efficiency
• Transitioning away from fossil fuels

1. End New Coal Approvals and Phasing Out Fossil Fuels: Developed countries should set specific targets for phasing out coal by 2030 and ending new oil and gas licensing.
2. Immediate Action Needed: There is still time to avoid overshooting the 1.5°C target, but urgent action is required.

Country-Specific Recommendations:

1. UAE: The plan does not include a commitment to phase out fossil fuels or stop the expansion of fossil fuel infrastructure.
2. Brazil: The announcement has a range of impact, raising uncertainty about the government's real path to climate neutrality by 2050.
3. UK: While the headline figure is impressive, comprehensive plans are needed for transforming priority sectors like heating and buildings.

Opportunities:

1. African Union Countries: Including them in global discussions could help address emission gaps and provide opportunities for collective action.
2. Mid-50 Century Goals: Global leaders should set explicit targets for phasing out all fossil fuels by mid-century.

By recognizing these challenges and implementing these potential solutions, developed countries can lead the way in reducing greenhouse gas emissions, promoting a global energy transition, and avoiding overshooting the 1.5°C target.