An atmosphere with less methane would encourage plants to soak up more carbon dioxide, buying precious time to solve the climate problem.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/methane-cuts-could-delay-climate-change-15-years
[2] http://admin.indiaenvironmentportal.org.in/category/author/fred-pearce
[3] http://admin.indiaenvironmentportal.org.in/category/journal/new-scientist
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/methane
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/green-house-gases
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-dioxide
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-science