The environmental affect of the energy business is diverse. Energy was harnessed by human beings for millennia. firstly it was with the use of fire for light, heat, cooking and for safety, and its use may be traced back at least 1.9 million years. In recent years there was a trend towards the increased commercialization of different renewable energy resources.
Intake of fossil fuel resources leads to world warming and weather change. In most parts of the world little change is being made to slow these changes. If the peak oil hypothesis proves true, and more explorations of viable alternative energy resources are made, our affect may be less hostile to our environment.
Quickly advancing technologies can accomplish a transition of energy generation, water and waste management, and food production towards better environmental and energy handling practices using techniques of systems ecology and industrial ecology.The scientific consensus on world warming and weather change is that it's caused by anthropogenic greenhouse gas emissions, the most of which comes from burning fossil fuels with deforestation and some farming practices being also big contributors. A 2013 study showed that two thirds of the industrial greenhouse gas emissions are caused by the fossil fuel and cement production of just ninety businesses around the globe between 1751 and 2010, with half emitted since 1986.
Though there is a greatly publicized denial of weather change, the vast most of scientists working in climatology accept that it's caused by human activity. The IPCC report weather Change 2007: weather Change Impacts, Adaptation and Vulnerability predicts that weather change will because shortages of food and water and increased risk of flooding that will influence billions of people, especially those living in poverty.
One measurement of greenhouse gas related and other Externality comparisons between energy resources may be found in the ExternE project by the Paul Scherrer Institut and the University of Stuttgart which has been funded by the European Commission. as indicated by that study, hydroelectric electricity produces the lowest CO2 emissions, wind produces the second lowest, nuclear energy produces the third lowest and solar photovoltaic produces the fourth lowest.
Similarly, the same research study ExternE, Externalities of Energy, undertaken from 1995 to 2005 found that the cost of producing electricity from coal or oil could double over its present value, and the cost of electricity production from gas could increase by 30 if external costs like damage to the environment and to human health, from the airborne particulate matter, nitrogen oxides, chromium VI and arsenic emissions made by these resources, were taken into account. It has been estimated in the study that these external, downstream, fossil fuel costs amount up to 1-2 of the EUs complete Gross Domestic Product GDP, and this was before the external cost of world warming from these resources was included. The study also found that the environmental and health costs of nuclear power, per unit of energy delivered, was 0.0019/kWh, which was found to be lower than that of many renewable resources as well as that caused by biomass and photovoltaic solar panels, and was thirty times lower than coal at 0.06/kWh, or six cents/kWh, with the energy resources of the lowest external environmental and health costs related with it being wind power at 0.0009/kWh.