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Round 3: Tossup 4

Eunice Newton Foote’s pioneering work on this effect was overshadowed by John Tyndall. This effect drove a positive feedback loop during the Permian-Triassic mass extinction according to (10[1])the clathrate gun hypothesis, which predicts the breakdown of permafrost. This effect is caused by infrared-active substances (10[2])that exert a positive (10[1])radiative forcing by absorbing outgoing longwave radiation. This effect decreases planetary albedo and unbalances the planet’s energy budget. This effect causes Venus to be warmer than Mercury. For 10 points, global warming is driven by what effect in which gases like methane and carbon dioxide trap energy inside the atmosphere? ■END■

ANSWER: greenhouse effect [accept greenhouse gases; prompt on GHGs; prompt on global warming or anthropogenic climate change by asking “that is caused by what effect?”]
<Washington A, Other Science> | Packet C
= Average correct buzz position

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Buzzes

PlayerTeamOpponentPositionValue
Aaryan SumeshBerkeley Archer QueenBerkeley Little Prince2610
Vijay HansBerkeley Boss BanditUCSC4310
Danny HanStanford BBerkeley Mighty Miner4310
Hansen JinBerkeley Skeleton KingStanford A4710

Summary

TournamentEditionTUHConv. %Neg %Average Buzz
UK (North)UK5100%0%56.00
UK (South)UK8100%13%54.50
Northern CaliforniaUS4100%0%39.75
Eastern Canada (1)US4100%0%54.25
Eastern Canada (2)US9100%0%38.67
FloridaUS4100%0%55.50
Great LakesUS10100%10%58.60
Lower Mid-AtlanticUS9100%0%47.89
Upper Mid-AtlanticUS9100%22%51.89
MidwestUS10100%10%42.20
NorthUS4100%25%57.25
NortheastUS11100%18%56.27
South CentralUS6100%17%48.83
SoutheastUS12100%33%66.33
Upstate NYUS5100%0%42.40