Tag: Earth
Why does the air contain less oxygen in the mountains?
If the air contains less oxygen in the mountains than at the seaside, it is because the pressure there is lower. The explanations. K2, the “mountain without pity” With 8,611…
Global overpopulation: what are the possible consequences?
We would be over 7.6 billion human beings on Earth and two billion more in 2050. What is the impact of overpopulation on the environment and the world’s resources? You…
These trees are champions in the fight against global warming and pollution
In the current context of global warming, and more broadly, of an environmental crisis, trees have a role to play. And scientists can help us maximize the benefits we can…
The origin of terrestrial components revealed by the composition of the lower mantle
Where do the carbon, nitrogen, and water that made the Earth habitable come from? Even today, this question remains intensely debated. Yet one chemical element in particular could help solve…
These super-trees, champions in the fight against global warming, pollution and floods
In the current context of global warming, and more broadly, of an environmental crisis, trees have a role to play. And scientists can help us maximize the benefits we can…
Polar Circle: what is it?
We call the polar circle, one of the five main parallels – an imaginary geographic line – represented on the maps of our planet. In fact, there are two polar…
Comet Leonard passes closer to Earth today!
Comet Leonard: remember its name because it will be talked about in December and until the beginning of the year 2022. Discovered a year ago, it promises to be the…
Yann Arthus-Bertrand, Earth seen from the heart
The photographer and president of the Good Planet Foundation Yann Arthus-Bertrand publishes his intimate and committed autobiography “Legacy, the heritage of a life”, with editions of La Martinière, as well…
World’s first underground magma observatory to dig towards the center of the Earth
The Krafla (Iceland) was already an exceptionally beautiful volcanic system. And a region rich in geothermal resources. Which is now also preparing to become a unique scientific research site in…
The brightest comet of the year is approaching Earth: how to observe it?
Comet Leonard: remember its name because it will be talked about in December and until the beginning of the year 2022. Discovered a year ago, it promises to be the…