Science Quiz / global change lit

Random Science Quiz

Can you name the global change lit?

Quiz not verified by Sporcle

Forced Order
Score 0/36 Timer 12:00
Cropland 62% human, 35% animal, 3% biofuel
Excessive fertiliser, 33% - 50% of fertilizer emissions N2O
Quantitative model of human impacts, constant and shrinking, 3000 yr significant ecological change
2100 most years hotter than current hottest on record
100ppm CO2 rise 18,000-11,000 ya caused oceanO2 decline and benthic hypoxia
Megafaunal extinctions correlated with human arrival
Last time earth was 3 degrees warmer sea levels were 15-20m higher
9.1 PgC per year, atmosphere 45%, Land 29%, Oceans 26%
photosynthesis ~2.7 billion ya, GOE ~2.45 billion ya
Large animals are more threatened to becoming extinct
Climate more arid in glacial period - Antactic ice core, 8 cycles
0.58 W/m2 net forcing earths system, energy imbalance
end century longer and more intense drought, and rainfall events >95% of daily average
Savannah and woodlands controlled by fire and recruitment species, inc CO2 inc recruitment, alternative stable states, C4 grasses
drop in Ocean oxygen, change in top predator composition, 35% habitat change
Snowball earth, ended 580Mya glacial at tropic sea-level, CO2 + rain = intense weathering + nutrient pulse into ocean
Underestimated importance of deforestation as C emitter, potential for carbon sequestration
Afforestation 200-700ppm removal by 2100, competes for land and needs sustainable agri intensification.
14.5% of GHG emissions from livestock
CO2 persists in atmosphere
2003 france heatwave = 20-35% yeild loss, 1972 Ukraine =13% loss triple global prices
UK beef 26.5gCO2 per g food, cereals & veg 0.5gCO2
GOE 2.45 billionya, organic carbon burial and possible pyrite burial through sulphate reducing bacteria
Extinction risks 0.8-1.7, 1.8-2.0, >2.0
280 ppm of CO2 since pre industrial
Oceanic low O2 areas increased by 4.5million km2 in 50 years
25% of GHG fro food industry, 80-86% from agriculture
0.1pH drop in ocean pH since industrial revolution
CO2 increase crops and water saving, only in cool wet yrs, wet 22% yeild, dry 1%
Megafaunal agent of disturbance and trees in enclosure experiment
O2 and insects 35% atmospheric = 12% male and 20% female drosophila size increase
Fertile cresent 10-12 Mya, job diversification, intensification, techology, population
Harber-Bosh feeds half the population
FACE CO2 experiment small yeild rise in C3 none in C4
Cenozioc ice house world and climate depression due to uplift but dampened by plant negative feedback
climare refugees

You're not logged in!

Compare scores with friends on all Sporcle quizzes.
Sign Up with Email
Log In

You Might Also Like...

Show Comments


Top Quizzes Today

Score Distribution

Your Account Isn't Verified!

In order to create a playlist on Sporcle, you need to verify the email address you used during registration. Go to your Sporcle Settings to finish the process.