Ideas received last year: (click suns to rate or comment on ideas)

1 Nanophone: a microphone to hear sounds at a microscopic scale, including cells moving and organelles moving. Maybe it could detect things that microscopes can't see. E-mail
 
2 Some governments give poor people cheap public housing, but they need to wait a long time to get it, they must live in a certain place, and people fake poverty to qualify. Instead, raise taxes to pay everyone cash, and let people rent wherever they want. E-mail
 
3 Since corruption and poverty can cause each other, it's hard for poor countries to climb out of poverty. To fight corruption, a country could volunteer to accept an outside (UN) commission and court to investigate and prosecute corruption. E-mail
 
4 To fight brain drain (poor countries losing precious funds teaching doctors, who then leave for more pay in rich countries), use education loans, to be forgiven by working in home country or repaid in cash earned from rich country. E-mail
 
5 To reduce plastic waste, charge, worldwide, a tax on plastic production at source (ethylene cracking?). Reducing, reusing, recycling, and replacing would then become cheaper than making new plastic. E-mail
 
6 Air inside city buses can be more polluted than outside. Buses should completely flush their air when at clean portions of their routes, or should store clean air in a tank to release it gradually into the interior during the day. E-mail
 
7 A team of experts from various fields whose full-time job is scouring the world for man-made accidents waiting to happen, like unintentional nuclear missile launches, nuclear reactor meltdowns, or epidemics of preventable diseases, and suggest fixes. E-mail
 

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