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<p>emissions during 2010-2019 are tropical terrestrial emissions.</p>

<p>There is accumulating research and data showing that oil and gas industry methane emissions - or from fossil fuel extraction, distribution and use - are much larger than thought.</p>

<p><big>Natural</big></p>
<p>Natural sources have always been a part of the <a href="page.php?w=methane_cycle">methane cycle</a>.  Wetland emissions have been declining due to draining for agricultural and building areas.</p>

<p><big> Methanogenesis </big></p>
<p>Most ecological emissions of methane relate directly</p><p>
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