Happy Friday!

Here are today’s stories of progress in the fight against the climate crisis and nature loss.

🚫 Saying no to fossil fuel ads

From flights to SUVs to cruise ships, ads for the world’s most polluting industries are increasingly being banned in cities across Europe. Florence, The Hague, and Stockholm have all made moves to curtail adverts for these high-carbon businesses in a bid to drive down their demand. While it's too early to account for the effect of these bans on buying behaviours, it’s hoped they could have the same effect as bans on junk food that were followed by a drop in sales.

🇦🇺 Solar prices nosedive

Thanks to abundant solar and wind power, South Australia’s electricity prices have fallen by 30% in one year. At times, wholesale electricity prices actually went negative, meaning supply outstripped demand. The state is getting close to completely replacing fossil fuels with renewables – half of homes now have solar panels on their roofs – and has built seven football-pitch-sized batteries for energy storage.

💦 Solving water shortages with waste

A survey found that rural Americans would pay up to $49 a month for access to recycled toilet water, recognising the huge benefits it would play in times of shortages and drought. This shows people seem to be overcoming the ‘yuck factor’ – while recycled wastewater is perfectly clean and safe, it’s origins can understandably put people off. While a fee of $49 wouldn’t be enough to get the necessary infrastructure off the ground, it could cover operating costs and fund other water solutions, like those that collect rainwater for crops.

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📝 The Green Light is written by freelance writer Molly Millar.