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Climate change dynamics in atmosphere and space

The atmosphere of the Earth protects us and all life on the planet from cosmic rays, solar ultraviolet radiation and solar winds. It keeps the temperature relatively stable between day and night and makes life possible for the inhabitants of the planet. Now greenhouse gases and particles are rapidly added by human activities, altering the atmospheric composition and therefore also the climate conditions.

Aurora Borealis
Photo: Norbert Pirk

The global climate has gone through strong changes before anthropogenic influence. Investigating such periods that have not been influenced by human activities helps us to improve the understanding of the climate system and how it will act now and in the future. Equally interesting is to see how natural system dynamics such as the solar activities affects the climate variations on Earth. In particular, it provides estimates of the natural climate variability.

An altered greenhouse gas balance as we see in the past, and now today due to human activities, alters the global temperature which in turn alters vegetation, precipitation, ice cover and ocean circulation. Airborne particles (a few nanometers to a few micrometers in diameter) like aerosols play an important role in the atmosphere. On the one hand, they can interact with solar radiation or cloud formation, and thus play a significant role in the Earth's climate. On the other hand, they can be breathed into human airways, thus being responsible for several adverse health effects.


LUCCI - Lund University Centre for studies of Carbon Cycle and Climate Interactions

Department of Physical Geography and Ecosystem Science

Lund University

Sölvegatan 12

S-223 62 Lund, Sweden