The effective understanding and agreement among the world's leaders.
While they speak the language of violence, this will continue being the world's main problem.
scarcity
the main problem is a problem that occurs in the middle of the story
the main problem is a problem that occurs in the middle of the story
The world's main energy source is the Sun. The Sun is not the problem. The problem arises when we use the fossil fuels which the sun has prepared for us. They turn to carbon dioxide which will probably cause catastrophic heating of the earth if we use too much.
the main food problem is that most people around the world don't have enoufh food
the main problem of a human is war, weapons, violence, and mental problems The main problem of a human is the unknown.
A main conflict is the main problem that a character has in a story, or the main problem of the story
Depends on what you mean by "Main Problem"
the main problem is you the greenhouse
The main ones were: segregation, sterilisation, starvation, deportation and extermination.
I think the main problem is that Attean wants Matt to go with them.
the main problem is to find out who A is!