Are borders established because of differences or are differences the result of borders? The author ponders on this question.

The same will happen with fossil fuels as with the Decauville trains, which were scrapped when automobiles and roads appeared.

Much of the plastic debris fractures into micro- or nanoparticles called microplastics that can be ingested by marine organisms.

With a completely colonised Earth, we must look after the environment and be pioneers of a new status quo based on climate neutrality.

Today stupid signatures abound. Millions of identifiable, expendable authors clutter the web. What is truly important is not to sign, but to do relevant things well.

The Coast Guards International Ice Patrol monitors Atlantic icebergs and even diverts their course from oil rigs.

[caption id="attachment_119749" align="alignleft" width="500"] Illustration: Anna Sanchis[/caption] The past shapes the future but does not inspire it. Max Planck said that new scientific truths are

The concept of educating city is based on the evidence that space is not neutral, but rather generates, disseminates, and reinforces images and values in an explicit and implicit way. This communicative character is more intense the more complex, diverse, and richer the reference space is.

Oases are what they are, but the desert around them makes us perceive them as lavish. We live in a universe of mental oases and we do not give things the value they have, but the value we would like them to have.

The miasmas – a frightening name concealing a solid lack of knowledge – were supposed vapours carrying particles of «corrupted matter» that caused infectious diseases.