Why we need to spend more money on energy related projects?

You can calculate the amount of money each country spends (each year) on gasonline (petrol or diesel or gas). Surely, it will be in many 10s of billions. Now, calculate last year's budget on energy research. If you compare these amounts, surely the later will be insignificant. Are the we ignorants? 

Here is a short video by Bill Gates. 

This is is really mind blowing. Are you satisfied with what your country spends on energy related research? Comment here.