0 the part of the earth's environment where life exists --
1 the part of the Earth's environment where life exists --
Even though many exotic systems appear to be no more likely in extraterrestrial biospheres, by no means is all lost.
As a result, the entire biosphere is being altered in a process generally known as 'global change'.
Molecular hydrogen, as the most reduced component in the system, forms a basal component to a deep dark biosphere powered by metastable redox gradients.
The members investigate subjects such as the deep biosphere, extremophiles, prebiotic chemistry and origins of life, planet and star formation in connection with astrochemistry.
Large-scale diffuse hydrothermal circulation thus has to be taken into account when estimating the global potential of the seafloor to support a hydrogen-driven deep biosphere.
For instance, it reflects, better than any other parameter, the breadth of their ecological niche, and thus their exact position and role in the biosphere.
This has led to a new view of the diversity of the biosphere and of the environmental boundaries for life.
Further we compare and discuss magnetic reversal time scales with biodiversity and the outbreak of super volcanoes, which affected the biosphere.
