The $42.3 billion Gates Foundation is looking to achieve four monumental goals by 2030. Here are four entrepreneurs already working on solutions.
A library of digital books could eventually bring thousands of titles to millions of students around the world.
Interest in phone apps with SOS buttons to alert contacts and websites to report sexual harassment has surged as more women challenge the view that they have a lower status than men.
The 'retail activist’ charged $2,000 on her Visa card and made 1,000 bottles of Afghanistan Orange Blossom, selling it out of her garage.
Kenny King created Global ADE, which has already built schools in several communities in Cambodia.
In roughly half of major US cities nonprofits raise money to fund public parks, led by New York's Central Park Conservancy, which has provided more than $700 million since 1980.
In Tanzania more than 840 households and small factories have been connected to solar grid systems, bringing electricity to a remote region.
In the capital of Kampala, Uganda, a local business called Tugende is doubling profits for taxi bike drivers through its lease-to-own program.
In a show of winter warmth, young people as far as Connecticut and Canada are turning the hashtag into action by helping others clear their driveways of snow.
With temperatures rising and extreme weather becoming more frequent, 'climate-smart agriculture' is using a host of measures — from new planting practices to improved water management — to keep farmers ahead of climate change.
Henneberger, a behind-the-scenes force for social change, relishes improving lives through better housing and race relations, as well as economic opportunities.
African Plant Breeding Academy students aim to introduce overlooked crops to African communities in need.
The charity Honey Care Africa has invested $1 million in South Sudan, and local farmers have earned more than $75,000, benefiting more than 400 families.
A 19-year-old college student started a Go Fund Me page to raise money to buy a car for James Robertson, a Detroit local who walks 21 miles roundtrip on his commute to and from work every day.
Informal waste workers in Brazil were being ignored, despite their vital work keeping Sao Paulo clean. Enter a street artist who made their carts into works of art.
In Mali, domed mud-brick homes are cheaper, protect fast-vanishing local forests, and make homes cooler in worsening summer heat.
Despite challenges Africa countries are making significant progress toward ending hunger, a UN official says.
The British couple moved to Thailand to retire. But when they learned of the illegal capture and torture of dogs, their plans changed.
The international NGO works to reduce corruption in governments and businesses in more than 100 countries.
Originally focused on finding justice for Myrna Mack Chang, she now seeks it for others who suffered during and after a brutal 36-year civil war in Guatemala.