Read the passage and summarize it in a single sentence of 5 to 75 words. You have 10 minutes.
The shift to renewable energy is accelerating as the cost of solar and wind power falls below that of fossil fuels in many regions. This transition promises cleaner air and lower emissions, but it also requires massive investment in storage and grid infrastructure to manage the variable supply of wind and sunshine.
Summarise the text in a single sentence (5–75 words).
Words: 0 / 5–7510:00