Where do almost all houses have so called 'green roofs'?

(a)  

What is the name of the building that constantly rotates to face the sun?

(a)  

How many people are employed in solar technology in Freiburg?

(a)  

How many kW of solar energy does Freiburg's solar installation produce a year?

(a)  

Freiburg plans to be 100% renewable for when?

(a)  

The burning of waste in treatment plants provides energy for how many people?

(a)  

Excess solar energy is used to power Freiburg's swimming pools. How many are there?

(a)  

How many people live in Vauban?

(a)  

In the last 12 years, the annual waste in Freiburg has been cut by how many tonnes?

(a)  

What percentage of waste is recycled?

(a)  

How much less waste is created per person (in Kg) then the average German?

(a)  

How many trees have been planted in the creation of green spaces scheme?

(a)  

What percentage of the city is forested?

(a)  

How many hectares of parks are there?

(a)  

How many cars per 1000 people in Freiburg?

(a)  

How many bike parking spaces are there?

(a)  

Since the redevelopment of the tram network, how many more journeys are taking place on tram each year?

(a)  

How many km of cycle path are there?

(a)  

What percentage of journeys in Freiburg take place by car?

(a)  

How much does 1 parking space cost per year in Vauban?

(a)