Green energy can''t yet bend climate curve

📌 Summary:

• Context: In 2025, renewables (solar, wind, hydro) edged out fossil fuels as the predominant global power source, with India and China leading new clean-energy additions — yet warming still hit 1.37°C in 2025 (latest Indicators of Global Climate Change/IGCC report, in Earth System Science Data)
• Core argument: record clean-energy growth is still not enough to check rising GHG emissions — the energy transition is real but too slow to bend the warming curve
• Causal chain — why renewables alone fall short: (1) power and partly transport are decarbonising, but large parts of industry remain fossil-driven; (2) cleaner industrial alternatives like green hydrogen need time and heavy investment; (3) sustainable equipment has high upfront costs; (4) integrating green tech with legacy systems needs R&D and academia-government cooperation; (5) know-how/technology transfer — the "Achilles heel" of mitigation — remains weak
• Key data: warming at 1.37°C (2025); at current emission rates the remaining carbon budget to stay under the Paris 1.5°C threshold could be exhausted in about 3 years
• Solutions proposed: national policies to nudge manufacturers toward energy-efficient machines, recyclable materials (e.g., recycled aluminium uses far less energy), and waste minimisation; stronger international cooperation and technology transfer
• International angle: report released as negotiators meet at Bonn mid-year climate talks, amid heatwaves across Europe — warnings meant to resonate there

🎯 UPSC Relevance: GS3 Environment — climate change mitigation, carbon budget, energy transition limits, and the politics of technology transfer; ties to UNFCCC/Paris Agreement.

📝 Prelims Facts:

• Paris Agreement threshold: limit warming to 1.5°C; "carbon budget" = remaining GHG emittable while staying under it
• 2025 warming reached 1.37°C (IGCC report, journal Earth System Science Data)
• Bonn hosts the mid-year (intersessional) UN climate talks
• Recycled aluminium needs much less energy than primary aluminium

🔑 Key Term: Carbon Budget — the cumulative quantity of greenhouse gases that can still be emitted while keeping global warming below a set limit (here 1.5°C).