French entrepreneurs engineering new fuel sources with biomass briquettes look to scale their startup to save costs and forests in Uganda.
Nate BeardAugust 19, 2014
Hear how Greenlink builds and leases solar-powered computer labs for off-grid schools in Tanzania, where 96 percent of rural classrooms lack electricity.
Unreasonable InstituteJuly 16, 2014
Why should we spend money on space exploration when we have so many problems here on planet Earth? The answer to solving the world's biggest problems is in the stars. Read what this astronaut has to say about it.
Ron GaranMarch 5, 2014
One Earth Designs harnesses the sun to bring clean energy to three billion people who lack access to clean fuels. This product saves lives, reduces carbon emissions, saves time for women, and saves money for families.
Unreasonable MediaMarch 4, 2014
The technology companies who sailed around the world with us for Unreasonable at Sea had 6 minutes to share the story of their company to hundreds of people packed into an auditorium in Barcelona. This is one of those talks.
Unreasonable MediaFebruary 4, 2014
Paul Polak and his "soul brothers" have a vision: bring radically affordable solar pumps to farmers in rural villages. Read this post to learn how this will transform livelihoods and radically reduce rural carbon emissions.
Paul PolakJanuary 22, 2014
Most people look at poop and see problems. Ashley Murray looks at poop and sees profit. Watch this entrepreneur, working in Ghana and Kenya to completely reinvent the way that we think about human waste.
Unreasonable InstituteJanuary 7, 2014
Why one man ditched his corporate job at Procter and Gamble to solve one of the most pressing challenges in his native country of Guatemala.
Unreasonable InstituteNovember 26, 2013
Mouhsine Serrar is a mechanical engineer from Morocco. Watch what he is doing to save lives & create a successful business. It's awesome.
Unreasonable InstituteNovember 19, 2013
Deciding whether to go it alone or bring on a co-founder can be the most important decision you make as an entrepreneur.
Rajesh AnandanSeptember 11, 2013
Find out how UpEnergy is making clean energy, clean water, and solar light more accessible and more affordable than ever for communities who need it the most -- with a business model that generates profits.
Unreasonable InstituteAugust 10, 2013
A 35-year veteran of the IBM Corporation speaks on corporate social responsibility, bends in the road, and turning lectures into trees.
Unreasonable MediaJune 28, 2013
Why Give a Damn: There are currently 2.6 Billion poor rural farmers who are untapped…
Paul PolakMay 24, 2013
Why not become the largest employer of hearing Impaired people in the world? Why not manufacture affordable hearing aids? Tendekayi Katsiga of Solar Ear shares his unreasonable journey.
Tendekayi KatsigaJanuary 19, 2013
Yes, Manoj Sinha holds 10 US patents. That only scratches the surface. Manoj speaks about how to take on the BFPs in the world, and gives valuable advice on how to succeed in an energy market.
Unreasonable MediaNovember 30, 2012
There is a window of opportunity to do a lot of solar in the next 12-24 months. By 2015 the USA will be back in campaign madness and as pressing as climate will be as an issue, the opportunity to be proactive and frame our solutionary response will have passed. We must strike now.
Danny KennedyNovember 21, 2012
Danny Kennedy is the Founder of Sungevity. In this Unreasonable post he poses why going solar is mankind’s next step forward and why the solar bandwagon is worth jumping on.
Danny KennedyOctober 22, 2012