challenges
For Business
Who We Are
Results
search
Get Started
I want to launch a challenge
Connect to talented problem solvers
I want to solve a challenge
Join our community to win prizes
log in
menu
log in
challenges
For Business
Who We Are
Results
share
Follow
Following
Unfollow
Anastasia Nikiforova
share
Follow
Following
Unfollow
Kyiv, Misto Kyiv, Ukraine
message
Roles I’m interested in
Blogger
Read More about Anastasia
Roles I’m interested in
Blogger
more
Challenges
Following
Activity
Awards
Challenges
Teams
Valeriia Lisovska's team
Submissions
Clean Water and Sanitation
Providing clean water and sanitation: water filtration, eco-toilets, hygiene education, wastewater treatment innovations.
by
Valeriia Lisovska's team
Following
Activity
Awards