Sapa Heat Transfer is a company that produces aluminum heat-exchanger strips for the automotive industry. Sapa Heat Transfer wish to chart their emissions of Carbon dioxide in order to meet future demands on Carbon dioxide reporting. They also would like to examine the meaning of the term ?green electricity? which is marketed as Carbon dioxide free, and the sort of electricity that they purchase. This report includes both direct (liquefied petroleum gas and diesel) and indirect (water, process-water, long distance heating, waste) emissions from their company.

The goal with this examination thesis is to investigate the difference in Carbon dioxide emissions between a building with a wooden versus concrete carcassing from a life cycle perspective. The huge amounts of Carbon dioxide released into air from human activities must be reduced to prevent serious consequences. A way to limit this issue is through performing a comparative study where the result shows which of two products with the same function has the lowest emission of Carbon dioxide, whereof the product with the lowest Carbon dioxide pollution can be chosen.To be able to perform a study like this an object has been chosen and studies about life cycle analyses have been done. The rental square meter, the thermal conductivity value, the energy requirements and the placement of the building has been set equal in both framework types. There were solely dissimilarities of the two buildings taken into account when this comparison study was performed.The result of the study is that a building constructed with a wooden carcassing has the lowest amount of Carbon dioxide emissions.

Today, about 15 to 20 percent of Sweden?s total emission of Carbon dioxide can be traced to the household sector. By examining apartment blocks in a life cycle perspective, the origin of the Carbon dioxide emission has been charted and analyzed. This information has been used to create a computational model that calculates the total emission of Carbon dioxide from a specific apartment block. The results from the analyzed apartment blocks indicate that both the use of energy and the emission of Carbon dioxide have been reduced since the 1960s. Through the examination of building materials, it is possible to lower the emission of Carbon dioxide that origins from the construction phase of an apartment block.

Energy Director is a control and measuring system for energy consumption and is part of the product portfolio of E.ON AG for more efficient use of energy, offered to business customers. As of today, the system has only one parameter of control, namely power, and the objective of this essay has been to investigate whether other ones could be added. The emphasis is on the environmental perspective, which is why Carbon dioxide has served as an example for this parameter in question.Parallel with the study of Energy Director electricity on the margin, calculations of Carbon dioxide equivalents and also the Swedish trade of electricity have all been highlighted. Results indicate that when reductions in energy are made it is endorsed to omit from electricity on the margin rather than some mean distributed electricity, under certain conditions, and in addition the calculations of the reductions should be modified regarding the efficiency of the power stations fuelled by lignite and bituminous coal. Sweden practices trade with the Nordic countries as well as Poland and Germany.

Climate change has become an increasingly topical subject. Recently debate on how our food affects the environment has flared. It has been shown that how the food we eat is grown and transported could be one the bigger contributors to the emission of Carbon dioxide into the atmosphere. The aim of this study is to see how consumer?s choices of vegetables affect release of Carbon dioxide. The results show that emissions of Carbon dioxide can be lowered by consuming vegetables that have been grown on open land. Vegetables that have to be grown in heated greenhouses in Sweden should perhaps be exchanged for such that have been grown in unheated greenhouses in southern Europe, even though the transport distance is significant. .

Today most ice rinks in Sweden use secondary refrigeration systems with a solution of calcium chloride and water as secondary refrigerant. Due to the large amount of energy such a system uses more efficient systems would be desired.An earlier study concluded in the possibilities of using Carbon dioxide as secondary refrigerant with copper tubes as the loops in the ice rink. Since then 3 ice rink refrigeration systems has been built with Carbon dioxide in copper tubes. Excluding the ones being direct involved in those projects there is still very little knowledge about how these system works. This study has been made primarily with the aim of adding to the knowledge concerning availability and cost and secondary to look at possibilities for improvement.A comparison between systems with Carbon dioxide, calcium chloride respective ammonium solved in water has been made by using Decision Matrix.

Students? performance in school is dependent on the indoor climate. This report studies four schools regarding air quality and thermal environment. A survey was made at the schools as well as measurements of Carbon dioxide, dampness, thermal climate and, as an indicator for the furniture?s capability to collect dust, shelf factor and fleece factor.

The research group Soil and Water Management at the department of Soil and Environment at theSwedish University of Agricultural Sciences in Uppsala are studying greenhouse gas emissions fromcultivated peat soils. To measure Carbon dioxide emissions from peat soils in the field the researchgroup are now using two portable Carbon dioxide meters (Vaisala GMP343). For practical reasons,they plan to acquire a new type of automated field meter. The aim of this study is to evaluate thepresent meters to see how environmental conditions and instrument settings affect the results,which is meant to facilitate the introduction of the new field meter when the meters needs to becompared. As a part of the study the relationship between groundwater level and Carbon dioxideemissions from peat soils will be investigated.The evaluation of the two Carbon dioxide meters was made by connecting them to one single airtightsystem, with the aim of creating identical measurement environments.

The world is in a stage of climate crisis where the average temperature is rising, with consequences such as, melting ice sheets, increasing sea levels, and floods. The climate panel of the UN, IPCC, has stated that this is a reaction of anthropogenic emissions of greenhouse gases. The most important gas is Carbon dioxide, which contributes with 80 per cent to the on going climate crisis.The increasing emissions of Carbon dioxide are connected to human consumption patterns. This puts pressure on the earth, as humans demand more and more resources. Today the earth needs one and a half year to regenerate the resources humans? demand of it, by the year 2030 we will need two planets in order to cope with this increasing demand of resources.At a global level it is established that richer countries have a stronger consumption pattern than poorer, and thus generate higher levels of Carbon dioxide emissions.

Abstract This degree project examines how much Carbon dioxide that emits during the construction phase of a road project. This is to make it possible to compare how the amount of Carbon dioxide differentiates between traditional road construction and Swepave construction, which is PEAB?s alternative way to design roads. To make the comparison a calculation tool has been produced. To compare the amount of Carbon dioxide emissions a reference project was needed.

The importance of energy- and environmental issues has increased, and the work towards reducing Carbon dioxide emissions plays a major part. The European Union has set up goals for the membership countries to work towards this to happen. The Carbon dioxide emissions in Sweden have been reduced the last few years, but there is still a lot to do. About 30 per cent of Sweden?s Carbon dioxide emissions generate from energy usage related to housing, this is why the housing sector is of interest to examine.

To curb greenhouse gases and mitigate climate change is one of the biggest challenges human society face today. Carbon dioxide (CO2) has accumulated rapidly in the atmosphere as a consequence of burning of fossil fuels and deforestation. The aim of this study is to explore two methods to store Carbon dioxide in geological formations and biological sinks. The aim is also to discuss the two mitigation options from a sustainable perspective and whether it can lead to a better environment and benefits for local and global societies. The research questions are: Which method to store Carbon dioxide, geological or biological, is the most effective? Which method to store Carbon dioxide, geological or biological, has the greatest potential to promote sustainable development for local communities?The method used is a comparative case study and presents four case studies that explore the potential for CO2 storage offshore in Norway and Brazil; and in tropical forests in Mexico and Brazil.

Carbon dioxide in the atmosphere contributes to the greenhouse effect, which is essential tolife on our planet. Furthermore, it plays an important part of the photosynthesis andrespiration of the world?s organisms. Since the start of the industrial revolution the amount ofCarbon dioxide in the atmosphere has increased exponentially. The main source is theextensive burning of fossil fuels.

The background of this work is the media discussion about the effect of cultivation on peatsoils on greenhouse gas emissions. It has been argued that row sown and intensivelycultivated crops such as carrots are more likely to emit Carbon dioxide than for example grassleys. The association KRAV (an association promoting organic farming) shall, from this yearadapt their environmental policy to be more climate smart and have asked the question if thecultivation of some crops is more climate smart than others? Carbon dioxide emissions fromsoil are due to degradation of organic material and the rate is controlled by microbial activity.The microbial activity is determined by a variety of factors such as temperature, soil organicmatter quality and water content. I have measured the Carbon dioxide emission from fourdifferent crops at two different farms.

Freshwater ecosystems have long been neglected as an important part of the global carbon cycle. However, research shows that most of the world?s lakes are net-heterotrophic and consequently emitters of greenhouse gases to the atmosphere. In many boreal and north-temperate lakes, most of the yearly emissions usually occur in spring, shortly after ice-thaw. The aim of this study was to quantify the flux of Carbon dioxide (CO2) and methane (CH4) in three boreal lakes, during this annual event.