According to Wikipedia, mangrove is “a general term for tall evergreen trees and shrubs that form plant communities and forests in salt marshes of estuaries and brackish waters in tropical and subtropical regions”. It is not the name of a tree, but a general term. Individually, there are about 70 to 100 species.



Mangrove forests have a large carbon storage capacity, which in other words means that they take in a lot of carbon dioxide and store it as carbon. Increasing and preserving mangrove forests will help reduce the amount of carbon dioxide in the atmosphere and halt the progress of global warming. Mangroves are also effective in mitigating the effects of tsunamis and tidal waves, and are deeply involved in the ecosystem of the surrounding area, nurturing the lives of various animals.


Since mangroves have many benefits, many Japanese companies are implementing mangrove planting as part of their CSR activities. I believe that companies and governments in other countries are also focusing on such things.


These photos show the stunning mangroves at Guimaras Island, which is famous for mangoes.


In order to slow down the pace of global warming, I would like to make every effort in various ways to help with mangrove planting.

石炭と環境問題/Coal and Environmental Issues


Coal has contributed to the development of the world as an inexpensive and stable(※) energy source. It plays an especially important role for energy resource-poor countries such as Japan. (※) Reserves are available for 132 years and are not concentrated in any one region.


On the other hand, various goals have been set as part of a global effort to slow down ”Global Warming” as much as possible. We all know that coal, which emits a lot of Co2 when it is burned, is facing a huge headwind.


“Major private-sector financial groups such as MUFG, SMBC and Mizuho have also decided not to finance coal-fired power generation”. “As decarbonization efforts accelerate, the Japanese seven major trading companies are reviewing their businesses one after another, selling coal development projects that emit large amounts of CO2 and withdrawing from coal-fired power generation”.


With news like this, it is natural to wonder if there is any future for coal mining companies.


Now, let’s take a look at the actual situation. The global consumption of coal increased from 4.7 billion tons in 2000 to 8.0 billion tons in 2013, and has since leveled off, reaching about 7.6 billion tons in 2019. For the past decade, about half of the world’s coal has been consumed in China.

今後の見通しですが、IEA(International Energy Agency) のメインシナリオであるSTEPS(Stated Policies’ Scenario)(※)では、2019年から2040年にかけて平均年率0.6%ずつ減少するとしています。(※)STEPSとは、各国の政策や対策、目標、計画に基づいた予測値を指します。

As for the future outlook, the IEA’s (International Energy Agency) main scenario, STEPS (Stated Policies’ Scenario) (※), states that the average annual rate of decrease will be 0.6% between 2019 and 2040. (※) STEPS refers to projections based on policies, measures, targets, and plans of each country.

このシナリオでは地球温暖化の目標達成が出来ないため、同じくIEAが今話題のSDGs(Sustainable Development Goals)に則ったシナリオSDSも作成しています。このシナリオでは、石炭使用量は毎年5%減少し、2040年には2019年の1/3程度まで減少することを予測(期待)しています。

Since this scenario does not achieve the goal of global warming, the IEA has also created a scenario SDS in accordance with the SDGs (Sustainable Development Goals), which is also a hot topic today. This scenario predicts (or expects) that coal consumption will decrease by 5% every year, and by 2040, it will be about 1/3 of what it was in 2019.


There is a big difference between the two scenarios. I think there are many discussions about ”global warming” and ”SDGs”. The cost of renewable energy, the feasibility of new energy sources such as hydrogen, technology to absorb Co2, developments in countries such as China and India, technological innovations and change in mentality for energy conservation, I hope that human wisdom will be able to successfully deal with these issues.


Most of this blog is based on materials from JOGMEC (Japan Oil, Gas and Metals National Corporation).

Click to access 300373354.pdf