The U. S. military carbon emissions more than countries such as Sweden and Portugal

Abstract: this paper introduces the fixed vector tracking technology in the use of photovoltaic power station, and in some cases, analyzes the fixed photovoltaic power station and the synchronous tracking of photovoltaic power station resources, economic and environmental costs, this paper discusses the fixed photovoltaic power station receives the reason of low efficiency and poor reliability vector tracking technology, and puts forward the application of linear on photovoltaic power station ( Synchronization) The method of tracking technology, in order to improve efficiency, reduce the cost. Points out that the synchronous tracking ( The condenser) Photovoltaic power station, especially in fixed photovoltaic power station in the sunshine time is shorter, the solar radiation is relatively less in the mainland to use do not have resources, economic and environmental benefits, synchronous tracking photovoltaic power station in rizhao good sunshine for a long time, such as dunhuang area application has certain economic and social benefits.

at brown university, according to a study the us military in 2017 about 59 million tons of greenhouse gas emissions, the pentagon any emissions a year than many smaller countries greenhouse gas emissions.

according to & other; Deutsche welle & throughout; 16, this study pointed out that if the army of the United States as a country, it will be 55 big emitters of greenhouse gases in the world. Among them, and troops and weapons accounts for 70% of the U. S. military, energy consumption, it is mainly used for the consumption of jet fuel and diesel.

the report's author, crawford, a political scientist at Boston university ( Neta Crawford） Said, in 2017, for example, the U. S. military's greenhouse gas emissions more than countries such as Sweden and Portugal's annual carbon emissions.

she points out that the pentagon has much space to reduce emissions, such as try to cut the fight to protect the gulf oil import channels, because with the increase of proportion of renewable energy, oil is no longer has the priority.

in November 2018, the world meteorological organization said that if the trend, global temperatures would rise by 3 to 5 degrees Celsius this century, greatly exceeds the limit global temperature rise to 2 degrees Celsius below target.