What is the climatic impact of aircraft?
What is the climatic impact of aircraft trails? High-flying aircraft sometimes leave white streaks in the sky. This...
Is the current warming due to cosmic radiation?
The Earth’s atmosphere is flooded by a stream of high-energy particles from deep space, known as galactic cosmic...
What is human responsibility for climate change?
Within the global warming observed in the 20th century, how can we distinguish between natural causes and human...
It is possible to find the weather in the Middle Ages
Reconstructing global temperature variations over the last millennium is a challenge taken up by dozens of teams of...
The link between aerosols and climate change
How do atmospheric aerosols modify the climate?Aerosols linked to human activities are responsible for a cooling of the...
The rise in the earth’s temperature
Are temperatures rising in all regions of the world?No, not quite. It depends in part on the time...
The definition of a climate observation system
What are essential climate variables? The international GCOS program (the Global Climate Observing System) was set up in...
The climate differs according to your geographical location
What explains the difference in climate from one part of the planet to another?One essential reason: because the...
Explaining the Earth’s radiation balance
The laws of conservation of mass and energy apply to planet Earth as they do to any physical...
Reasons for climate variation
What causes climate to vary? Solar radiation is distributed unevenly across the Earth’s surface. Low latitudes (around the...
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