113 1214?-1294 146 1596-1650 1631-1679 1646-1716 16thcentury 1723-1789 1724-1804 1749-1832 1770-1831 1775-1854 17thcentury 1818-1883 18thcentury 1903-1969 1908-1961 192 193 19thcentury 20thcentury 530 active6thcentury adorno americanessays ancient animalwelfare anne aristotle art authorship bacon biography botany business categories(philosophy) chinese christianity civilization climaticchanges conductoflife congresses conservacion conservación conservation conservationofnaturalresources contingency(philosophy) controversialliterature conway cosmology criticismandinterpretation criticismandinterpretationadorno culture deepecology descartes development earlyworksto1800 earth ecofeminism ecologia ecologie ecologisme ecology ecología economics effectofenvironmenton effectofhumanbeingson environmentalaspects environmentalconservation environmentalethics environmentalism environmentalists environmentalprotection environmentalresponsibility environmentalsciences environmentandecology environnement essays essentialism(philosophy) ethics ethnicstudies evolution fantasy feministcriticism filosofia filosofía french friedrichwilhelmjosephvon gaiahypothesis general geobiology geographie geography georgwilhelmfriedrich german germanliterature god gottfriedwilhelm hegel histoire historia history historyandcriticism human-animalrelationships human-plantrelationships humanbeings humanecology immanuel indianphilosophy indiansofnorthamerica indigenouspeoples italian johannwolfgangvon john kant karl knowledge landscapeassessment largetypebooks liberty life lifesciences literarycriticism literature marx marxist maurice medieval medioambiente meditations merleau-ponty metaphysics middlewest milieubescherming milieugedrag modern moralandethicalaspects motives mysticism nativeamericanstudies naturalhistory naturalism nature nature(aesthetics) natureconservation natureinliterature naturphilosophie natuurbehoud natuurfilosofie necessity(philosophy) newyorktimesbestseller nonfiction northamerica phenomenology philoponus philosophicalanthropology philosophie philosophiedelanature philosophy physics plants politicalaspects politicalscience popularculture potawatomiindians prigogine protecciondelmedioambiente proteccióndel protection psychologicalaspects recursosnaturales religion religionandscience religiousaspects renaissance rené roger roman sci075000 science semiotics socialaspects sociallifeandcustoms socialscience sustainabledevelopment sustainableliving symmetry televisionbroadcasting themes theodorw theorie theory theoryof therapeuticuse umweltschutz unitedstates wildernessareas écologie écologiehumaine écologisme