rainforests and arctic tundra

rainforest temperatures

26-28

alaska temps

low of - 15 , high of 12

rainforest annual rainfall

>2000 mm

amazon rainforest size

6 million kn²

how much water is cycled via evaporation

60%

how porosity effects water cycle in amazon

large parts are impermanable, causing rapid run off

how much co2 does the amazon absorb a year

2.4 billion

how large is the madeira basin

1.3 million km²

how much of the brazilian rainforest was cut down in 2024

6,500 km²

how many hecters did bolivia deforest in 2024

15,000 km²

how much of the maderia basin is lost each year

2,800 km²

how does converting rainforest tp grass land effect run off

it increases it by a factor of 27

how much rainforest has brazil commited to resforest by 2030

120,000 km²

what % of braziliam rainfoest has national parks

44%

how much land does the arctic tundra cover

8 million km²

what is the lowest temp in the tundra

-40

what is the higest temp in the tundra

16

annual tundra rainfall

low - max 250 mm

how thick is the active layer

10 - 15 cm

what happens in the summer in the tundra

melting ice creates ponds and lakes.

tundra ground water

little ground water storage due to low permiability

how much carbon does the tundra hold globally?

1,700 gigatonnes

june - sep in tundra

growing season - temps reach above 0 and biomass grows to increase photosynthesis

arctic national wildlife refuge

covers 80,000 km² - it is protected and it has extensive oil and gas reserves

how many abrrels of oil does prudhoe bay output

280,000 barrels

how many oil spills does the pipeline and bay oil field cause a year

500

how does oil and gas effect water

water taken from creeks and rivers for industrail use have reduced run off

how much carbon is lost a year from permafrost melt

up to 40 million tonnes

How much rain fall can be intercepted in the rainforest

58%