pollution biofuels genetically modified organisms tariffs farm subsidies leading alternative approaches organic movement ref name motherjones ref ref name smhcomau ref types reindeer herds form basis pastoral agriculture several arctic subarctic peoples pastoralism involves managing domesticated animals nomadic pastoralism herds livestock moved place place search pasture fodder water type farming practised arid semi arid regions sahara central asia parts india shifting cultivation small area forest cleared cutting burning trees cleared
Applied science Agriculture