This post will try to dig a little deeper into the role plastic plays in our society, its advantages and disadvantages.

Human activities, principally through emissions of greenhouse gases (GHG), have unequivocally caused global warming, with global surface temperature reaching 1.1°C above 1850–1900 in 2011–2020.

In merely 122 years, emissions have multiplied by a factor of about 10, while the world population has grown about 3 times. We are three times as many humans as in 1900, using each one of us, every year, on average (but with huge differences between rich and poor countries), about three times as many fossil fuels as any person did at the beginning of the twentieth century.

Seventy thousand years ago Homo sapiens was still an insignificant animal minding its own business in a corner of Africa. In the following millennia it transformed itself into the master of the entire planet and the terror of the ecosystem (Yuval N. Harari.)

The expansion of Homo sapiens across the planet took a long time after the first departure from Africa

“Macrobes” (II): Beginning of the Phanerozoic / “Macrobios” (II): Inicio del Fanerozoico

“Macrobes”: Ediacaran Period fossils / “Macrobios”: Fósiles del periodo Ediacárico

In the previous post on Alien Life we talked about the Pozas Azules ponds in México, with chemical compositions resembling the oceans of...

Beyond the solar system there is life of some kind. It exists, experts agree, on at least a small minority of Earthlike planets that...

Grypania spiralis Multicellular organisms appeared possibly 2.2 billion years ago (1-5). At first, they were little more than colonies of...

Snowball Earth, Lynn Margulis and Endosymbiosis / Tierra en bola de nieve, Lynn Margulis y Endosimbiosis. Fictional Snowball Earth /...

(Versión en español más abajo) Francis Crick and James Watson, as theoreticians and model builders, with the little-known and even less...

(Spanish version below) Possibly life has evolved so much on our planet during the last four billion years that it is impossible for us...

Charles & William Darwin For a biologist there is probably no other scientific figure of greater relevance than Charles Darwin. Although...

Meteorites are rich in complex organic molecules based on carbon that are present in living organisms. Researchers found in meteorites up...

The surface of planet Earth has changed frequently due to the displacement of tectonic plates. These plates are located in the...

We come from Earth, this planet, our planet. Earth’s initial nucleus grew with collisions of more materials. These collisions, together...