has taken up a mission to find such 1,000 efficient solutions since he successfully completed the first zero-fuel electric and solar aircraft's circumnavigation across the globe.
The charges were ultimately dropped because Piccard
did not show up to court to testify against her then-husband.
, the Solar Impulse Foundation launched the World Alliance for Efficient Solutions in November 2016, aiming at making consumers aware of solutions that are already available and capable of supporting a sustainable growth.
The plane, not heavier than a car but having wingspan of a Boeing 747, was being flown on 35,000 km trip in stages with two pilots Piccard
and Andre Borschberg (also Swiss) taking turns at the controls.
This is an historic day for Captain Piccard
and the Solar Impulse team, but it is also an historic day for humanity," said the UN Secretary-General.
It was also delayed for more than a week in Cairo ahead of its final flight when Mr Piccard
fell ill, and due to poor weather conditions.
and fellow pilot Andre Borschberg took turns flying solo for long days and nights, taking 20-minute naps every two hours.
Let's take it further,'' Mr Piccard
said, arriving into Abu Dhabi to cheers and applause.
and Borschberg, also co-founders of the clean energy aircraft initiative, took two days and 37 minutes to finish the journey, during which they faced severe turbulence.
After landing the plane, pilot Bertrand Piccard
was greeted outside the cockpit by his SolarImpulse partner and fellow pilot Andre Borschberg.
Summary: The solar-powered plane first took off from Abu Dhabi in March 2015; for the return leg, Bertrand Piccard
is in pilot's seat
and Andre Borschberg, the Swiss founders of the project, took turns piloting the aircraft, which has a wingspan larger than a Boeing 747 but weighs no more than an average family car.