5 "C). Error bars enclose the 95% confidence range and the red line highlights decadal variations.
Source: UK Climate Projections 2011 at http://ukclimateprojections.defra.gov.uk / content/view/751/500/
As shown in Figure 3 above, the Central England temperature (CET) has increased by approximately one degree Celsius since 1980; in fact, the year 2006 was the warmest on record (Central England temperature 2010). Some salient trends represented by these historic weather patterns include:
1. Following a period of relative long-term stability for most of the 20th century, CET has increased by about a degree Celsius since the 1980s. This is a more rapid rise than that of the global average land-surface temperature over the same period, and considerably faster than that of the global mean temperature.
2. The annual mean CET of 10.82°C in 2006 was 1.35 ± 0.18°C above the 1961 -- 1990 average, and was the warmest in the 348-year series.
3. The fifteen warmest calendar years in the series are, in order: 2006, 1990/1999, 1949, 2002, 1997, 1995, 1989/2003, 1959/2004, 1733/1834/1921 and 2005. Several of these high ranking years are too long ago to have had any significant contribution from man-made warming. This reflects the large natural variability of climate over a small area such as that of the CET.
4. The years 2006 and 2007 have seen a number of records in the CET monthly series broken.
5. July 2006 was the warmest month since observations began, with a mean temperature of 19.7°C; September 2006 was the warmest September; Autumn 2006 was the warmest Autumn; and April 2007 was the warmest April (Central England temperature 2010, 3).
Besides the calendar-year averages described above, monthly CET data set has also been organised into successive 12-month rolling averages that reveal some other clear trends. Based on the amplified analysis using these data, the year-long period ending in April 2007 was also the warmest such period on record (Central England temperature 2010). In sharp contrast to the meticulous data collection that has taken place in Central England since 1880, there has been no corresponding effort has been made for regions other than Central England to attribute recent trends to specific causes; however, the same general warming patterns that are evident in Figure 3 are also discernible in Figure 4 below, suggesting the global warming process in the UK is not localized to Central England, but rather has become a regionalized problem (Temperature in Scotland & Northern Ireland 2010).
Figure 4. Annual mean temperature averaged over the Scottish Mainland, 1800-2006.
Note: The red line emphasises decadal variations
Source: UK Climate Projections 2011 at http://ukclimateprojections.defra.gov.uk/content / view/753/500/
In response to these trends, the UK government has taken some preliminary steps to help reduce the short- and long-term threats represented by continuing emission of carbon, and these are discussed further below.
3.
Reduction of carbon dioxide emission by climate change bill
The Climate Change Act of 2008 established emission reduction targets for 2020 (reduction of 34% in greenhouse gas emissions) and for 2050 (reduction of at least 80% in greenhouse gas emissions), and introduced five-yearly carbon budgets that are legally enforceable in order to assure those targets are achieved (a low-carbon UK 2011). At present, the Department of Energy and Climate Change (DECC) is collaborating with other governmental agencies to facilitate the transition to a low carbon economy through the UK; a concomitant aspect of this legislation was to ensure that the UK benefits from the business and employment opportunities represented by the changes in global climate patterns in recent years (a low-carbon UK 2011).
4.
Planning and policy for reduction carbon dioxide emission
Other recent planning and policy initiatives taken by the UK government to reduce carbon dioxide emissions include the Carbon Reduction Commitment Energy Efficiency Scheme (CRC). The scheme is a mandatory carbon emissions reporting and pricing scheme that affects all UK organisations that use more than 6,000 MWh of electricity (equivalent to an annual electricity bill of about £500,000) a year (Carbon Reduction Commitment Energy Efficiency Scheme Elements 2011). The CRC became effective in April 2010 and is designed to reduce UK carbon emissions in substantive ways that are not addressed by other legislation (CRC Scheme Elements 2011). The main goal of the scheme is to reduce emissions in the commercial sectors in the UK that are not energy intensive as a way of augmenting the Climate Change Agreements as well as the EU Emissions Trading Scheme because these target energy-intensive...
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