Zero Energy Buildings

The rising issue of CO2 emissions in the United States is a problem that we cannot ignore any longer. The main sources of carbon dioxide emissions come from the combustion of fossil fuels such as coal, oil, and natural gas. These emissions also come from everyday use of electricity, transportation and industry. Automobiles, large highways, and leaving your lights in your house on are all everyday examples that emit carbon dioxide. (EPA, "Overview of Greenhouse Gases") Carbon dioxide emissions, which have increased by 7% in the U.S. since 1990, are a dangerous and potent greenhouse gas yielded at a higher rate through coal burning than most other natural gas burning. Increased levels of carbon dioxide can lead to climate change and an increased

Carbon emissions are changing the planet for the worse. Energy production (mostly coal) is producing a one third of the US 's global warming emissions. Renewable sources produce little to zero percent. The balance of coal and renewable energy in the U.S. needs to be evened out with renewable techniques. Statistics from the Union of Concerned Scientist’s “Benefits of Renewable Energy Use” show that most renewable resources emit less than one pound of CO2E/kWh. These have significantly less of a carbon footprint than coal, which emits 1.4 to 3.6 lbs. CO2E/kWh or natural gas, which emits .6 to 2 lbs. CO2E/kWh. This impressive difference of carbon emissions between renewable and fossil fuel is the key to caring for our environment. A 2009 USC study found that if 25 percent of the US 's

Our lives involve the emission of theses dangerous greenhouse gases (Bushnell 25). Carbon dioxide has increased to

While this is great to the consumer, the renewable sector’s growth was more stagnant. Attention was diverted to use another greenhouse producing fossil fuel rather than a clean renewable. A trend in U.S. Energy Information Administration’s (2017) data showed renewable sector’s power production since 2008 grew only 5.7% as compared to natural gas production 18%. Another disadvantage to the diversion from renewables is the additional carbon dioxide generated from these additional plants operating. “About 24 percent of U.S. carbon dioxide emissions are related to natural gas in 2011” (Natural gas prices. (n.d.)). The replacement of coal-fired power plants with natural gas has let to a decrease of the green house gases, mainly particulate matter and sulfur dioxide emissions. “Sulfur dioxide (SO2) emissions produced in the generation of electricity at power plants in the United States declined by 73% from 2006 to 2015, a much larger reduction than the 32% decrease in coal-fired electricity generation over that period.” U.S. Energy Information Administration (2017). This shows that more efficient control equipment can be used to almost eliminate the trace amounts of sulfur dioxide in natural gas.

The effect of all this excess extra carbon dioxide in the atmosphere is that the overall temperature of the planet is increasing (global warming). Whilst the average global temperature is increasing, on a day-to-day level the climate is changing in unpredictable ways. To try and reduce the risk of continued adverse effects we need to reduce how much fossil fuel we are burning. Australia is currently has the highest CO2 emissions per capita. Figure 1 shows a graphical comparison to all the other developed countries and how Australia is lacking severely behind in terms of CO2 emissions.

Over 70% of our electricity comes from burning fossil fuels. Increase in technology (a.k.a electricity) leads to burning of waste. As well as the increase in population, leads to increase in food consumption, which greenhouse gas emissions generate from livestock, agricultural soils, and rice production.

Data from 2008 to 2012 show the carbon dioxide emissions as a fraction of the total greenhouse gas.

The International Energy Agency’s (IEA’s) preliminary estimate of energy-related CO2 emissions in 2015 reveals that emissions stayed flat compared with the year before, whereas the global economy grew (3). The IEA noted that “There have been only four periods in the past 40 years in which CO2 emission levels were flat or fell compared with the previous year, with three of those—the early 1980s, 1992, and 2009—being associated with global economic weakness. By contrast, the recent halt in emissions growth comes in a period of economic growth.”

Global emissions of carbon dioxide (CO 2) have increased by almost 50 per cent since 1990

This report is an analysis of the energy inefficiency of a brick three storey terraced town house built around 1880 circa, and how the dwellings can be made efficient to meet required targets of 114MtCO2 by 2020 and also to comply with the Energy Act 2011 for the private rented sector

Changing the way energy in buildings is monitored, controlled and consumed can bring down CO2 emissions and reduce costs (Faucheux & Nicolaï, 2011) .

CO2 is the most significant greenhouse gas, which mainly comes from the use of fossil fuels. Many people feel that content of CO2 in the atmosphere is the main reason for manmade global warming. The main sources of CO2 emissions involve electricity generation, industrial processes, fumes from transportation and commercial buildings and use. Emissions of greenhouse gases, such as CO2, to the atmosphere are expected to cause even more of a significant change in global climate (Davison, 2007). The main focus to try to reduce the amount of carbon dioxide in the atmosphere is to reduce the amount that is released from coal-fired power plants. Greenhouse gas emissions that involve the productions of electricity come from natural gas production and coal-fired power plant operations. Natural gas production accounts for twenty-four percent and coal-fired power plant operations accounts for seventy-five percent, while the other one percent is caused by other electricity generation operations. The main reason why coal-fired power plants have a higher percentage of emissions is because the sulfur content of coal is much higher than that of other fossil fuels (Jarmaillo et al., 2007). This proves that there is a great need to find an alternative fossil fuel to use instead of coal. Although coal is easy to mine, transport and process for the electricity generation process, it is also the

Humans today are using much more electricity than we need to in our houses and this is impacting our world more then we realise. Although electricity is a huge advantage to humans it has the complete opposite effects on our environment. By using more electricity, we are using more of the earth’s resources and if we keep going down this road then we are going to run out. The solution for this mass overuse of energy is to build houses which are more energy efficient. Features like LED lightbulbs, insulating and even positioning your house in the correct position for natural airflow instead of using air conditioning are all ways we can help improve this problem.

What has changed in the last few hundred years is the additional release of carbon dioxide by human activities. Fossil fuels burned to run cars and trucks, heat homes and businesses, and power factories are responsible for about 98% of U.S. carbon dioxide emissions, 24% of methane emissions, and 18% of nitrous oxide emissions. Increased agriculture, deforestation, landfills, industrial production, and mining also contribute a significant share of emissions. In 1997, the United States emitted about one-fifth of total global greenhouse gases.

emissions. It is interesting to point out that since 2005, CO2 emissions from power plants have already