Re: plenty of fuel
The US is the 3rd or 4th largest producer of petroleum. The problem is that it is the largest user of petroleum. That is changing, as next year, China is expeceted to be the largest user of oil.
The current known reserves of petroleum are sufficient for an estimated 50 years. The current reserves of coal are sufficient for an estimated 400 years, both at current usage rates.
The current known reserves of Uranium are sufficient for an estimated 200 years. That is using existing technology. Using both plutonium, existing stocks of depleted Uranium, and thorium, Nuclear can be stretched out to 500 to 1000 years.
Population growth has slowed. Europe and most of Asia now have declinimg populations. The fastest shrinking is currently Japan. China is expected to see population decline beginning in about 5 years. The population in the US and Canada is below reproduction levels, but is increasing by importing people from other areas of the world. UN projections have the maximumm population reached around 2050, at 9 Billion. It is currently around 7 Billion.
Food supplies, if used wisely, and farmed effectivly could feed 15 Billion at modern European levels. That is just using currently available farm land, at current US farm efficiency.So, it looks like food won't be a problem, unless we turn to Bio Fuels, and start burning food again.
For energy supplies, Fusion continues to be 20 years away, just as it has been since 1937. It's hard. A hot charged plasma creates electric current that make magnetic fields which oppose any fields used to contain it. For every step closer to a solution, we find two new problems.
Also, every power generation has problems Coal dirties the air, as do oil fired power plants. Gas power plants produce CO2. Solar power plants heat the area, and shade the ground, preventing plant growth, which can collapse entire ecosystems if used extensively. Wind kills flying things, and if used large scale will impact rainfall patterns and reduce available fresh water supplies. Nuclear has radioactive by products (for a while). Geothermal appears to increase the incidence of earthquakes. Hydro power drowns entire ecosystems.
It seems that no matter what we do, we have an impact on the world around us.
What is needed is a real cost/benifit analysis.
But, political opinions are mainly emotional, and do not respond rapidly to mere facts. Don't expect the "Greens" to change quickly. It will take a decade before they move to forbit any further Wind/Solar/Ocean current/wave energy schemes. That will be after they have experienced the harm those do several times.