var presentation = ["<word>global ecosystem<\/word>","<word>biosphere<\/word>","<word>matter<\/word>","<word>interacting compartments<\/word>","<word>biotic<\/word>","<word>living<\/word>","<word>abiotic<\/word>","<word>nonliving<\/word>","<word>accessible<\/word>","<word>inaccessible<\/word>","<word>forms<\/word>","<word>locations<\/word>","<word>terrestrial autotrophs<\/word>","<word>biotic and accessible<\/word>","<word>living organisms<\/word>","<word>matter in rocks and minerals<\/word>","<word>abiotic and inaccessible<\/word>","<phrase>In the <strong data-readahead=\"global ecosystem\" class=\"presentation_word\">global ecosystem<\/strong> (or <strong data-readahead=\"biosphere\" class=\"presentation_word\">biosphere<\/strong>), <strong data-readahead=\"matter\" class=\"presentation_word\">matter<\/strong> exist as different <strong data-readahead=\"interacting compartments\" class=\"presentation_word\">interacting compartments<\/strong>, which can be <strong data-readahead=\"biotic\" class=\"presentation_word\">biotic<\/strong> (<strong data-readahead=\"living\" class=\"presentation_word\">living<\/strong>) or <strong data-readahead=\"abiotic\" class=\"presentation_word\">abiotic<\/strong> (<strong data-readahead=\"nonliving\" class=\"presentation_word\">nonliving<\/strong>) as well as <strong data-readahead=\"accessible\" class=\"presentation_word\">accessible<\/strong> or <strong data-readahead=\"inaccessible\" class=\"presentation_word\">inaccessible<\/strong>, depending on their <strong data-readahead=\"forms\" class=\"presentation_word\">forms<\/strong> and <strong data-readahead=\"locations\" class=\"presentation_word\">locations<\/strong>. For example, <strong data-readahead=\"matter\">matter<\/strong> from <strong data-readahead=\"terrestrial autotrophs\" class=\"presentation_word\">terrestrial autotrophs<\/strong> are both <strong data-readahead=\"biotic and accessible\" class=\"presentation_word\">biotic and accessible<\/strong> to other <strong data-readahead=\"living organisms\" class=\"presentation_word\">living organisms<\/strong> whereas the <strong data-readahead=\"matter in rocks and minerals\" class=\"presentation_word\">matter in rocks and minerals<\/strong> are <strong data-readahead=\"abiotic and inaccessible\" class=\"presentation_word\">abiotic and inaccessible<\/strong> to <strong data-readahead=\"living organisms\">living organisms<\/strong>.<\/phrase>","<word>biogeochemical cycle<\/word>","<word>pathway<\/word>","<word>elements of matter<\/word>","<word>biotic<\/word>","<word>biosphere<\/word>","<word>abiotic<\/word>","<word>lithosphere<\/word>","<word>atmosphere<\/word>","<word>hydrosphere<\/word>","<word>Earth<\/word>","<word>nitrogen<\/word>","<word>carbon<\/word>","<word>water<\/word>","<word>reservoirs<\/word>","<word>substance remains<\/word>","<word>sequestered<\/word>","<word>long period of time<\/word>","<phrase>A <strong data-readahead=\"biogeochemical cycle\" class=\"presentation_word\">biogeochemical cycle<\/strong> is a <strong data-readahead=\"pathway\" class=\"presentation_word\">pathway<\/strong> by which specific <strong data-readahead=\"elements of matter\" class=\"presentation_word\">elements of matter<\/strong> are turned over or moved through the <strong data-readahead=\"biotic\" class=\"presentation_word\">biotic<\/strong> (<strong data-readahead=\"biosphere\" class=\"presentation_word\">biosphere<\/strong>) and the <strong data-readahead=\"abiotic\" class=\"presentation_word\">abiotic<\/strong> (<strong data-readahead=\"lithosphere\" class=\"presentation_word\">lithosphere<\/strong>, <strong data-readahead=\"atmosphere\" class=\"presentation_word\">atmosphere<\/strong>, and <strong data-readahead=\"hydrosphere\" class=\"presentation_word\">hydrosphere<\/strong>) compartments of <strong data-readahead=\"Earth\" class=\"presentation_word\">Earth<\/strong>. There are biogeochemical cycles for <strong data-readahead=\"nitrogen\" class=\"presentation_word\">nitrogen<\/strong>, <strong data-readahead=\"carbon\" class=\"presentation_word\">carbon<\/strong>, and <strong data-readahead=\"water\" class=\"presentation_word\">water<\/strong>. In some cycles there are <strong data-readahead=\"reservoirs\" class=\"presentation_word\">reservoirs<\/strong> where a <strong data-readahead=\"substance remains\" class=\"presentation_word\">substance remains<\/strong> or is <strong data-readahead=\"sequestered\" class=\"presentation_word\">sequestered<\/strong> for a <strong data-readahead=\"long period of time\" class=\"presentation_word\">long period of time<\/strong>.<\/phrase>","<word>Climate change<\/word>","<word>global warming driven<\/word>","<word>human-induced emissions<\/word>","<word>greenhouse gases<\/word>","<word>large-scale shifts<\/word>","<word>weather patterns<\/word>","<word>humans<\/word>","<word>unprecedented impact<\/word>","<word>Earth's climate system<\/word>","<word>largest driver of warming<\/word>","<word>emission of greenhouse gases<\/word>","<word>carbon dioxide<\/word>","<word>methane<\/word>","<word>Fossil fuel burning<\/word>","<word>coal<\/word>","<word>oil<\/word>","<word>natural gas<\/word>","<word>energy consumption<\/word>","<word>main source<\/word>","<word>emissions<\/word>","<word>additional contributions<\/word>","<word>agriculture<\/word>","<word>deforestation<\/word>","<word>manufacturing<\/word>","<word>Temperature rise<\/word>","<word>accelerated<\/word>","<word>tempered<\/word>","<word>climate feedbacks<\/word>","<word>loss of<\/word>","<word>sunlight-reflecting snow<\/word>","<word>ice cover<\/word>","<word>increased water vapor<\/word>","<word>changes to land<\/word>","<word>ocean carbon sinks<\/word>","<phrase><strong data-readahead=\"Climate change\" class=\"presentation_word\">Climate change<\/strong> includes both <strong data-readahead=\"global warming driven\" class=\"presentation_word\">global warming driven<\/strong> by <strong data-readahead=\"human-induced emissions\" class=\"presentation_word\">human-induced emissions<\/strong> of <strong data-readahead=\"greenhouse gases\" class=\"presentation_word\">greenhouse gases<\/strong> and the resulting <strong data-readahead=\"large-scale shifts\" class=\"presentation_word\">large-scale shifts<\/strong> in <strong data-readahead=\"weather patterns\" class=\"presentation_word\">weather patterns<\/strong>. Though there have been previous periods of climatic change, since the mid-20th century <strong data-readahead=\"humans\" class=\"presentation_word\">humans<\/strong> have had an <strong data-readahead=\"unprecedented impact\" class=\"presentation_word\">unprecedented impact<\/strong> on <strong data-readahead=\"Earth's climate system\" class=\"presentation_word\">Earth's climate system<\/strong> and caused change on a global scale. The <strong data-readahead=\"largest driver of warming\" class=\"presentation_word\">largest driver of warming<\/strong> is the <strong data-readahead=\"emission of greenhouse gases\" class=\"presentation_word\">emission of greenhouse gases<\/strong>, of which more than 90% are <strong data-readahead=\"carbon dioxide\" class=\"presentation_word\">carbon dioxide<\/strong> and <strong data-readahead=\"methane\" class=\"presentation_word\">methane<\/strong>. <strong data-readahead=\"Fossil fuel burning\" class=\"presentation_word\">Fossil fuel burning<\/strong> (<strong data-readahead=\"coal\" class=\"presentation_word\">coal<\/strong>, <strong data-readahead=\"oil\" class=\"presentation_word\">oil<\/strong>, and <strong data-readahead=\"natural gas\" class=\"presentation_word\">natural gas<\/strong>) for <strong data-readahead=\"energy consumption\" class=\"presentation_word\">energy consumption<\/strong> is the <strong data-readahead=\"main source\" class=\"presentation_word\">main source<\/strong> of these <strong data-readahead=\"emissions\" class=\"presentation_word\">emissions<\/strong>, with <strong data-readahead=\"additional contributions\" class=\"presentation_word\">additional contributions<\/strong> from <strong data-readahead=\"agriculture\" class=\"presentation_word\">agriculture<\/strong>, <strong data-readahead=\"deforestation\" class=\"presentation_word\">deforestation<\/strong>, and <strong data-readahead=\"manufacturing\" class=\"presentation_word\">manufacturing<\/strong>. <strong data-readahead=\"Temperature rise\" class=\"presentation_word\">Temperature rise<\/strong> is <strong data-readahead=\"accelerated\" class=\"presentation_word\">accelerated<\/strong> or <strong data-readahead=\"tempered\" class=\"presentation_word\">tempered<\/strong> by <strong data-readahead=\"climate feedbacks\" class=\"presentation_word\">climate feedbacks<\/strong>, such as <strong data-readahead=\"loss of\" class=\"presentation_word\">loss of<\/strong> <strong data-readahead=\"sunlight-reflecting snow\" class=\"presentation_word\">sunlight-reflecting snow<\/strong> and <strong data-readahead=\"ice cover\" class=\"presentation_word\">ice cover<\/strong>, <strong data-readahead=\"increased water vapor\" class=\"presentation_word\">increased water vapor<\/strong> (a greenhouse gas itself), and <strong data-readahead=\"changes to land\" class=\"presentation_word\">changes to land<\/strong> and <strong data-readahead=\"ocean carbon sinks\" class=\"presentation_word\">ocean carbon sinks<\/strong>.<\/phrase>"];
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