Rate of decline of natural resources in last 20 years
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Answer:
Your Answer is here dear mate :-
The six natural resources most drained by our 7 billion people
- Water. Freshwater only makes 2.5% of the total volume of the world's water, which is about 35 million km3.
- Oil. The fear of reaching peak oil continues to haunt the oil industry.
- Natural gas.
- Phosphorus.
- coal
- Rare earth elements.
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Answer:
Water – Even though you see water everywhere and our planet is 70% water, only 2.5% of that 70% is fresh water. The rest is salt water and not useful to humans at all. That small percentage of fresh water is mostly in the form of ice or permanent snow cover. So, we really have only a few percent available for use. The Food and Agriculture Organization of the United Nations predict that by 2025, 1.8 billion people will have no water to drink.
Coal – This is the most used fossil fuel and a non-renewable energy source. Peak coal extraction is predicted between 2025 and 2048. In 2011, it was estimated that we have enough coal to meet global demands for 188 years.If the demand increases, the timeframe will decrease.
Oil – Without oil, global transportation will be severely debilitated. The BP Statistical Review of World Energy estimates that there is 188.8 million tons of oil left in the known oil reserves as of 2010. If our current demand continues, this oil will only be enough to supply the world demands for the next 46.2 years.
Natural Gas – As of 2010, the known reserves of natural gas was estimated to last 58.6 years with the current global production.
Fish – Fishermen from a lot of coastal provinces report a decline in their catch. Other marine species such as the tuna is close to extinction due to overfishing. This is a resource since Fish is part of our major food groups
Phosphorous – This resource is used for fertilizers to help plants grow. Scientists from the Global Phosphorous Research initiative estimates that peak phosphorous will be reached by 2030. Phosphorous is derived from phosphorous rock and guano.