現在価値を導く係数に「経済安全保障」を加え、予算を確保し化石燃料自前調達手段を持つべきである。メタンハイドレート、五浦海岸沖、島根・山口県沖、対馬海峡西水道付近、尖閣付近での開発は、隣国や石油メジャー、米国などとの政治諸懸案を払底しすぐにとりかかるべき事案である。[Reasons why the development of large reserves of gas discovered in Japan's exclusive economic zone has not progressed at all]When future products are discounted and converted to present value, it is much cheaper to import from overseas.[We should add “economic security” to the coefficient that leads to the present value, secure a budget, and have means of procuring fossil fuels on our own. 】