The main problem is that we are currently 7,8 billion people on Earth’s and we are using more resources than we are producing. Many of the resource that we are reliant too are finite as fossil fuels, iron and other metals, minerals and sand. And as the population expend it mean more consumers to makes those resource run out faster. Even if we are using renewable energy, we are overusing it. Things have to change otherwise we would need three Earth’s to supply our needs by 2050. The other problem is the unfair distribution of food, 800 million people can’t get enough food every day while 650…