Energy and Climate – Vision for the Future Michael B. McElroy [email protected] February 7 th , 2018
Question Why did the industrial revolution take place in England rather than China?
Photosynthesis Respiration CO 2 +H 2 O+sunlight CH 2 O+O 2 CH 2 O+O 2 CO 2 +H 2 O+energy Processes involving carbon (1)
Definitions Gross Primary Productivity (GPP) refers to the rate at which carbon is incorporated initially in biomass Net Primary Productivity (NPP) refers to the quantity of organic matter that remains after the plant satisfies its requirement for respiration Net ecosystem Productivity (NEP) accounts for requirements of heterotrophs, roots etc. NEP is the best measure of the sustainable harvest.
Carbon is present in the ocean as HC O 3 - (bicarbonate ion), C O 3 2- (carbonate ion) and CO 2 (aq) (dissolved neutral CO2) . HCO 3 - is most abundant, followed by CO 3 2- , CO 2 .
Uptake of CO2 by ocean makes the ocean more acidic: This is followed by: Net reaction: H HCO O H CO 3 2 2 3 2 3 HCO CO H 3 2 2 3 2 2 HCO O H CO CO
Processes involving carbon Many marine organisms build shells consisting of C a C O 3 : C a 2+ + CO 3 2- C a CO 3 (s)
- Fall '10
- CO2, Bicarbonate, Carbon, Germany Energy Flow