WHY IS IT IMPORTANT TO USE RENEWABLE ENERGY?
Fossil-based fuels (oil, coal, and natural gas) currently provide about 85% of all the energy use both in US and worldwide. We all know that these resources are being constantly depleted and can’t be replaced within any practical time span. People often wonder how long exactly would they last? The remaining amount of a particular resource is often characterized by so-called Reserves-to-Production ratio (R/P). In plain language, R/P basically gives us the length of time the reserves would last if their usage continue at the current rate. Here are estimated world total R/P ratios for the main conventional fuels: oil – 46 years, natural gas – 58 years, coal – 118 years. Of course, the usage is constantly changing and once in a while new deposits are found. That’s why the above numbers are corrected every year. Tiếp tục đọc “Why is it important to use renewablwe energy?”
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