Global warming question and pie chart question

obueobl
timer Asked: Oct 29th, 2015

Question Description

question 1

Using Figure 4.15, identify the contributions to the energy balance at the Earth’s surface. Then state the conditions under which the GMST (i) would be inasteady state and (ii) would rise. (Guideline: up to 160 words.) 

Advice on answering Question 3: This question asks you to use a  word: ‘identify’, which means to pick out or select. This question also asks you to use Figure 4.15. You should not include the figure in your answer, but you should provide details of it within the text using the format (Figure 4.15). These details should be included in your word count. 

Question 2:



Unformatted Attachment Preview

Chapter 4 What determines the Earth's GMST? intercepted solar radiation solar radiation escaping 10 space atmospheric infrared radiation escaping to space surface intrared radiation escaping to space solar radiation scattered by atmosphere and clouds solar radiation absorbed by atmosphere atmosphere (including greenhouse gases and clouds) re surface infrared radiation absorbed by atmosphere atmospheric infrared radiation absorbed by surface solar radiation absorbed by surface solar radiation reflected by surface convection and latent heat infrared radiation emitted by surface Earth's surface and e Figure 4.15 Energy gains and losses by the Earth's surface and atmosphere. Note that, even though the arrows sating and stopping in the atmosphere do so in a small region in the centre, the atmospheric energy gains and losses bat they represent take place throughout the atmosphere. The width of each arrow indicates approximately the rate of energy transfer Figure 1 presents two pie charts showing global anthropogenic carbon emissions by type of source in 1975 and 2005. cement production gas flaring gas (a) Using information from Figure la only, estimate the proportions of emissions from (i) gas, (ii) oil and (iii) coal sources relative to total carbon emissions in 1975. (Guideline: one sentence for each source.) (b) Compare your answers to part (a) to an estimate of the proportions of (1) gas, (ii) oil and (iii) coal sources in 2005. In each case, state whether the proportion has increased, decreased, or remained the same compared with 1975. (Guideline: one or two sentences for each source.) (c) Using the data from Table 1, calculate the combined global carbon emissions from cement production and gas flaring in 2005 and express this as a percentage of total carbon emissions for the same year. The units used are million tonnes of carbon (Mt C), where 1 tonne = 1000 kg. Give your answer to 3 significant figures. O Table 1 Global carbon emissions (Mt C). cement production gas flaring Year Total /Mt C 1975 4596 1985 5439 1995 6420 2005 8106 gas Cement Production /Mt C 95 131 197 320 Gas Flaring /Mt C 92 49 60 (d) Using the data from Table 1, calculate the rate of increase in total global carbon emissions (in million tonnes of carbon per year (Mt C y')) between 1975 and 2005. Give your answer to 2 significant figures. Figure 1 Global carbon emissions from anthropogenic sources in (a) 1975 and (b) 2005.
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

This question has not been answered.

Create a free account to get help with this and any other question!

Related Tags

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors