claim: However, volcanoes have had very little impact on the last 40 years of global warming.
evidences.evidence_id: Climate change (general concept):98
evidences.article: Climate change (general concept)
evidences.evidence: Notable eruptions in the historical records are the 1991 eruption of Mount Pinatubo which lowered global temperatures by about 0.5 °C (0.9 °F) for up to three years, and the 1815 eruption of Mount Tambora causing the Year Without a Summer.
evidences.votes: REFUTES SUPPORTS
evidences.evidence_id: Huaynaputina:239
evidences.article: Huaynaputina
evidences.evidence: The eruption had a noticeable impact on growth conditions in the Northern Hemisphere, which were the worst of the last 600 years, with summers being on average 0.8 °C (1.4 °F) colder than the mean.
evidences.votes: NOT_ENOUGH_INFO NOT_ENOUGH_INFO
evidences.evidence_id: Ice age:137
evidences.article: Ice age
evidences.evidence: The consensus is that several factors are important: atmospheric composition, such as the concentrations of carbon dioxide and methane (the specific levels of the previously mentioned gases are now able to be seen with the new ice core samples from EPICA Dome C in Antarctica over the past 800,000 years); changes in the earth's orbit around the Sun known as Milankovitch cycles; the motion of tectonic plates resulting in changes in the relative location and amount of continental and oceanic crust on the earth's surface, which affect wind and ocean currents; variations in solar output; the orbital dynamics of the Earth–Moon system; the impact of relatively large meteorites and volcanism including eruptions of supervolcanoes.
evidences.votes: NOT_ENOUGH_INFO NOT_ENOUGH_INFO
evidences.evidence_id: Younger Dryas:0
evidences.article: Younger Dryas
evidences.evidence: The Younger Dryas (around 12,800 to 11,550 years BP) was a return to glacial conditions after the Late Glacial Interstadial, which temporarily reversed the gradual climatic warming after the Last Glacial Maximum (LGM) started receding around 20,000 BP.
evidences.votes: NOT_ENOUGH_INFO NOT_ENOUGH_INFO
evidences.evidence_id: Younger Dryas:952
evidences.article: Younger Dryas
evidences.evidence: "Volcanic influence on centennial to millennial Holocene Greenland temperature change".
evidences.votes: REFUTES NOT_ENOUGH_INFO