- what percentage of water supports all land on earth
- how often does the earth's eccentricity (orbit) change
- how much did the boundary dam cost to build
- how percentage of the world's carbon emissions are cities projected to be responsible for in 2030
- what is the annual rate of increase in the atmospheric carbon dioxide over the past 60 years compared to previous natural increase
- how far was the carbon dioxide piped to the weyburn oil unit
- Whitehall farm- reforesting in Cambridgeshire- cost
- Whitehall farm- reforesting in Cambridgeshire- what percentage of land plants by trees
- when did the rapid increase in carbon emissions start
- what is the power of the carbon capture plant in sashatchewan (boundary dam)
- in 2011 what percentage of GHG emissions were from agriculture
- how much has the sea level rised by since the 1990s
- biomass combustion- for every 2-4km2 of forest burned how much carbon is released
- how much carbon does permafrost in the northern hemisphere hold
- Percentage of carbon dioxide that can be captured from carbon capture
- Whitehall farm- reforesting in Cambridgeshire- how many hectares is the scheme
- percentage of the suns radiation is reflected back to space
- in the last 35 years what is the percentage of the artic ice retreating by
- how much sea level expected to rise by 2100
- how much carbon dioxide released from Australian wildfires