3.a Flashcards
history background of debate of climate change
key dates -
1824 - GHG effect was discovered as early as this by a French physicist Joseph Fourier
1862 - John Tyndall first suggested that certain gases (wv and C02) - Trapped heat escaping fro earths atmosphere and glacials were assai with periods of low atmosphere c02
1896 - Swedish Scientist - swedish scientist Svente Arrhenius observed that CO2 is an absorber of long wave radiation emitted by earth
1938 - until Guy Callender linked global warming to emissions of CO2 from burning fossil fuels
at time there was little interest in his assertion
as people believed excess CO2 would be absorbed by oceans
1957 -
this view changed dramatically = Hans Suess and Roger Revelle
discovered a complex chemical process which limited the capacity of oceans to absorb CO2
this mean that the residence time of CO2 in the atmosphere was much longer than previously thought
1958 - accurate measurements of global atmospheric CO2
database provided incontrivertible proof that CO2 conc in atmosphere is increasing
1970 - satellite imagery and computer modelling advanced, revealing that human activites were main cause
role of supranational institution - UN
the UN is an international organisation set up in 1945 and made up of 193 member states with the key aim of promoting international cooperation
the UN has created a Framework Convention on Climate Change (UNFCCC).
initially this met in RIo de Janeiro in 1992 then Kyoto in 1997
how is the kyoto protocol important?
the kyoto protocol is especially important as it set legally binding targets for countries to reduce their emissions
there were 92 initially party to the Kyoto protocol
although Australia and the USA didn’t ratify the treaty
how is the EU a part of the climate change debate?
the EU is leading the way in tackling climate change and has put together a comprehensive package of measures to reduce GHG emissions
the most well known/successful is the Emissions Trading System (ETS)
what is the ETS?
the Emissions Trading System (ETS) is a cap and trade scheme limiting emissions from 11,000 high polluting industries across 27 EU countries
which works by giving incentives for a reduction in carbon emissions and penalising heavy polluting industries and sectors
it covers 45% of total EU emissions including power stations and industries such as steel works
it is targeting a 21% reduction in emissions
member states also have targets for expanding the contribution of reneweables to national energy production and for improvements in energy efficiency
what do National Emissions Reduction targets cover?
National Emissions Reduction targets cover the remaining 55% of GHG emissions after the ETS, mainly from agriculture, housing, waste and transport
what are the 4 aspects of the UK govt climate change strategy?
set carbon budgets
low carbon technologies
carbon taxes
reduced demand for energy
how are SETTING CARBON BUDGETS a part of the UK climate change strategy?
five year periods
as stepping stones towards the 2050 target
for ex, the reduction targets for the period 2013-2017 and 2018-22 are 29% and 35% respectively
how are LOW CARBON TECHNOLOGIES a part of the UK climate change strategy?
investing in LCT such as carbon capture and storage
and encouraging the growth of renewables (e.g. wind, solar, biomass) by offering subsidies and reducing GHG emissions from power stations
how are CARBON TAXES a part of the UK climate change strategy?
to switch electricity generation from coal to greener fuels
in 2014, there were just 10 coal fired power stations in the UK but they were responsible for 1/5 of UK carbon emissions
introduced in 2013, taxed carbon emissions started at £16/tonne, with a planned rise to £70/t in 2030
in 2015 the tax was frozen at £18/t amind concers about electricity cost to consumers
3 of the UK’s remaining coal fired stations closed 2015/16 due in part to carbon tax and low global energy prices
carbon taxes have been levied on vehicle CO2 emissions since 2002
how is REDUCING DEMAND FOR ENERGY a part of the UK climate change strategy?
using domestic smart meters
promoting energy efficiency (e.g. insulation in buildings) and decreasing GHG emissions from transport to agriculutre
why didn’t india ratify the Kyoto protocol?
like other EDCs/LIDCs, the indian govt argued that rich countries should shoulder the costs of decreasing carbon emissions
they said its per capita energy consumption (1.7tonnes) was well below global avg of 5 tonnes
prioritising alleviating poverty and expanding electricity access
current high concs. of CO2 in atmosphere were largely the result of economic growth and industrialisation in ACs over last 150yrs
pressure groups agenda
how did India not ratifying the Kyoto protocol impact on the success of it?
this view prevented the USA ( the world’s biggest emitter at the time) from supporting Kyoto
the US govt believed that w/o the participation of India and China the Kyoto protocol would be meaningless
by how much are India’s GHG emissions predicted to rise from 2010-2030
given its current policies GHG emissions are expected to be in the range 4.0-7.3 bill tonnes by 2030
this compares w/ 2.43bill tonnes in 2010