Any increase would be due to discoveries and cost-effective discoveries in mineral resource retrievability.
Because of harsh weather.
A diamond mineral reserve is a geological phenomenon made up of at least one volcanic pipe that erupts diamonds and other precious minerals to the earth's surface. Many have been discovered in several countries in Africa, Canada, Australia, Brazil and India. Undoubtedly, there are diamond mineral reserves that have not yet been discovered on earth.
Libya's mineral resources include gypsum, limestone, iron ore, salt, and petroleum. The country is known for its significant oil reserves, which have been a major driver of its economy.
Sundarban
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Although most of England's mineral reserves have now been mined out, in the past coal, oil, clay, stone, tin, copper, lead and iron were mined.
Jamaica is one of the world's main producers of bauxite. Bauxite is the primary ore used in the production of aluminum, and Jamaica has significant reserves of this mineral. The country has been a leading exporter of bauxite since the mid-20th century, contributing significantly to its economy.
from human
I suggest resource goes further back than reserve. For example you might say uranium is a resource-we know how to use it to get energy. But it only becomes a reserve when we actually have a supply of it available, in reserve. Similarly coal is a resource, but you can only call it a reserve when you know where to go to get it, and that there are no political or logistic reasons whereby you cannot get access to it. Actually a resource is something that is valuable to mankind. A reserve is a resource that is economically and technologically viable to be mined or obtained.
Venezuela and it has been proven recently has more oil reserves than the Saudis.
There has been discovery of many oil reserves in Africa. Nigeria has the most oil reserves in the African continent.
Our crystal ball has been broken, so we are not able to predict what might happen in the world should a mineral harder than diamond be discovered in future.