While the venom of a few species is dangerous to humans, scientists are now researching the use of spider venom in medicine and as non-polluting pesticides.
Imagine a world where everyone has access to clean water, nutritious food, affordable housing, personalized education, top-tier medical care, non-polluting and ubiquitous energy.
The first bike sharing projects were largely initiated by local community organisations, either as charitable projects intended for the disadvantaged, or to promote bicycles as a non-polluting form of transport.
Indeed, in the context of a fuel shortage, cycling is being increasingly recognised as a cheap, accessible and non-polluting way to keep the city operating.