6 - Ecological Environment Flashcards
what do you have to know from this lecture?
- understand some climate change theory
- cause and effects of climate change on business
- explore the economic costs of (non)-mitigation of climate change
- two potential economic policy solutions
what does GHG mean?
greenhouse gas
what is a GHG sources?
any activity or process that emits a greenhouse gas into the atmospheren
what is a GHG sink?
somewhere in which GHG are stored for a long period of time
what have we done in terms of sinks and sources?
we have accelerated the process in which the earth releases and absorbs
takes co2 hundreds of years to break down
how long has the atmospheric sink been filling?
since industrial revolution (1750)
how much higher is the concentration of GHG since pre industrial levels:
40%
largely carbon dioxide
how longs do GHGs stay in sinks and why is this a problem?
100s of years
no technology in which can remove ‘pull plug’ hence the rise in climate change
what does GtCO2?
giga tonnes of co2
when was the tragedy of the commons written and by who?
Hardin 1968
what is the tragedy of the commons about?
that common land can be used by everyone and therefore will eventually be destroyed causing extra externalities
idea that its use is individually rational but wholly destructive
Antractica treaty
what did elinor ostrom say about the tragedy of the commons?
reviewed hardens book
won nobel prize
she stated that there are various ways in which common land can be managed without the need for government intervention
believed there was a way of doing business through a network/community
people will work together whilst using rational aims that help everyone
(swiss alps farmers organise land to their mutual benefit 1517)
what is the overall trend of global emissions?
they have been rising from 1751 up to the present
in line with industrial revolution
what is the biggest contributor of emissions?
electricity and heat production - 25%
agriculture and other land use - 24%
how much worst is nitrous oxide for global warming than c02?
300 times
what % of emissions is made up of co2?
82%
2012
what % of co2 is emitted by china?
29.1%
2015
what % of GHG emissions apply to china and USA?
45%
what did trump do in 2012?
tweeted that global warming was a concept created by the Chinese in order to make US manufacturing non competitive
worrying as it received over 60,000 likes meaning that some of the population may agree, despite much scientific evidence
how much did fossil fuel co2 emissions rise by between 2004 and 2013?
2.3%
how much has sea level risen by according to the university of colorado? 2018
8 inches higher since 1880
if the temp rises by 2 degrees what will happen?
university of colorado
sea level will rise by 6 feet
lose 440,000 square miles of land
375 million of people live
who is most at risk from the 2 degree temp rise?
uni of colorado
china, bangladesh and vietnam
low lying land