ELSS - general PSD

What percentage of humans are water?

60%

What percentage of Earth’s surface do oceans cover?

70%

How much solar radiation do clouds reflect?

1/5

What percentage of humans are carbon?

18%

What percentage of global water is in oceans?

97%

ELR

6.5^oC/km

DALR

10^oC/km

SALR

7^oC/km

Name an urban drainage basin

River Thames Basin

Name a lowland drainage basin

Somerset levels

Name a frozen drainage basin

Lena River Basin

When was Hurricane Harvey, and by how much did urbanisation increase flood risk?

2017 and 2000%

How much rainfall does Sitka Spruce intercept in Eastern England?

60%

How much more carbon do forest trees contain compared to grassland?

10x

For how long are trees a carbon sink?

100 years

What is the population of Swindon?

200,000

By how much were flows reduced in the River Kennet as a result of groundwater extraction?

10-14%

When was the drought and by how much flows fall in the River Kennet drainage basin?

2003 and 20%

When were the dry conditions and by how much did flows fall in the River Kennet drainage basin?

1990s and 40%

By how much did the water table in the artesian basin underneath London fall by due to overexploitation?

90m

How much of global energy consumption did fossil fuels account for?

84%

How much carbon does burning fossil fuels release to the atmosphere annually?

10bn tonnes/year

By how much could CCS reduce coal and gas-fired power stations emissions?

80-90%

How much CO₂ is the Drax Project designed to capture per year?

2 million tonnes/year

When did the Drax project commence and how much does it cost?

2019 and £1bn

How much solar radiation does the UK receive in winter compared to winter?

5x

By how much does atmospheric CO2 rise in interglacials compared to glacials?

100ppm

How much global terrestrial carbon is stored in wetlands?

35%

By how much have wetland areas decreased by in the USA?

halved since 1600

Where is wetland restoration used?

Somerset and Canadian prairies

When was the Kyoto Protocol?

1997

When was the Paris Agreement?

2015

What was the aim of the Paris Agreement?

reduce carbon emissions to 60% of 2010 levels by 2050

When was the Colorado River Compact started and how many states is water shared between?

1992 and 7

What percentage of water in the Colorado river basin is allocated to crop irrigation?

90%

How many drainage basin districts are there in England and Wales?

10