In Waai Weekly Impact we bring you the good news. Each week we curate three stories about positive impact worth sharing. See how others from all around the world inspire to make a difference.

Starbucks reusable coffee cups

Source: Fast Company

In Seattle you can now drink from the same cup, as somebody else. If you get a cup of coffee at some Starbucks stores in Seattle, you now have the option of ordering it in a reusable takeout cup for a $1 deposit. The cup looks similar to the company’s plastic cups for cold drinks, but it’s designed to be sturdy enough for repeated reuse: When a customer returns a cup, it’s cleaned, sterilized, and ready for the next customer within 48 hours. The pilot, which started on March 30, will last through the end of May.

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Climate change illustrated 

Source: NY Times

The New York Times released a beautifully illustrated guide for kids, and everyone else, about climate change. It starts of by telling the reader “If you’re a kid, almost every year you’ve been alive has broken a temperature record [..] this is what climate change looks like, and it’s here to stay [..] the planet is going to change a lot more in your lifetime.” It paints a realistic picture of what is going on and what will happen if we don’t act now.

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Whitest-ever paint could cool the earth

Source: The Guardian

The whitest-ever paint has been produced by academic researchers, with the aim of boosting the cooling of buildings and tackling the climate crisis. The paint reflects 98% of sunlight and cooled surfaces by 4,5 degrees Celsius below the ambient temperature in full sunlight. Painting a roof of 93 square meters would give a cooling power of 10 kilowatts: “That’s more powerful than the central air conditioners used by most houses.” Proffesor Xiliuyn Ruan, one of inventors. The paint is not quite there yet, some concerns are raised of its full impact (mining raw materials, transport, etc.) on the environment. But Prof Ruan hopes to solve these concerns by optimizing the paint so it can be used in thinner layers in the near future.

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