• CostPlus Drug Company is selling medications at cost, plus a small markup, allowing Americans to pay a similar price for medications to Europeans. In some cases, medications cost thousands of dollars less than the retail price at pharmacies. TechCrunch.
• World records fewest guinea worm cases in history of eradication campaign. The Carter Center.
• This startup is turning nonrecyclable plastic into building blocks fit for construction. Fast Company.
• Between 1978 and 2016, the median level of lead in the blood of children in the US fell by 95%. Our World in Data.
• Federal agencies are raising minimum wages for government employees to $15 an hour. Axios.
• A Zambian park has reversed the national extinction of black rhinos. Reasons to be Cheerful.
• Conservation efforts are saving humpback whales. Good Good Good.
• UCLA researchers cure HIV in 40% of mice. The Jerusalem Post.
• Swedish startup Molecular Attraction plans to kill mosquitoes in places plagued by malaria by tricking the insects into drinking beetroot “blood” laced with toxins. Freethink.
• Giant pristine coral reef discovered off Tahiti. BBC News.
• Rains bring salmon back to California streams after 25 years. The Guardian.
• Ghostly monkey and slug snake among 224 new species found in Mekong region. The Guardian.
• GM to invest historic $7 billion in 4 facilities across Michigan, creating 4,000 jobs. Detroit Free Press.

For more good news, check out The Progress Network, and Future Crunch.