Gaia: The living Earth | Nature Skip to main content Thank you for visiting nature.com. You
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A three-dimensional general-circulation climate model is used to simulate climates of Earth-
like planets with extreme axial tilts (ie 'obliquities'). While no terrestrial-planet analogue …

This paper is a response to the recent criticisms of Gaia theory by Kirchner and Volk, in this
journal (Kirchner, 2002; Volk, 2002). As noted by Kirchner, there is a need for more dialogue …

Publisher Summary This chapter examines the evolutionary impact of solar radiation from
the perspective of different spectral ranges, including ultraviolet (UV) radiation, visible …

We consider possibilities for the remote detection of microbial life on extrasolar planets. The
Darwin/Terrestrial Planet Finder (TPF) telescope concepts for observations of terrestrial …

Concern about future changes in the carbon cycle have highlighted the importance of a
dynamic representation of the carbon cycle in models, yet this has not been fully assessed …

Una explicación científica es aquella por medio de la cual se intenta, ante un enunciado
verdadero, dar las razones que llevaron a que se produzca el hecho, descrito por dicho …

“Human beings are carrying out a large-scale geophysical experiment of a kind that could
not have happened in the past nor be produced in the future. Within a few centuries, we are …

Climate is the composite or generalization of weather conditions of a region as a function of
season. It can be expressed in terms of the expected values of meteorological variables …

Abundant free oxygen in the atmosphere distinguishes our planet from all others in the solar
system. Earth's oxygen-rich atmosphere is a direct result of life. The current atmosphere …