As carbon dioxide increases in the atmosphere, plants become more efficient at producing their food and chemical requirements. They can allocate more resources for defence against pests. This is good for the plants but bad for the animals that eat them.
Crossroads' Work in Bolivia. Bolivia is the poorest country in South America, with an estimated 59 per cent of the population living in poverty. The situation has left many communities, particularly rural and indigenous ones, struggling to meet their basic needs.
Bolivia ranks 28th in terms of area but it has one of the lowest population densities in the world with only 9 people per square kilometer (23/square mile), which ranks 221st in the world. The largest city in Bolivia is Santa Cruz de la Sierra.This autonomous city has a population of 1.45 million and a density of 2,700/square kilometer (7,000/square mile). The metro population is 2.1 million. The capital is Sucre with a population of 300,000.olivia ranks 28th in terms of area but it has one of the lowest population densities in the world with only 9 people per square kilometer (23/square mile), which ranks 221st in the world. The largest city in Bolivia is Santa Cruz de la Sierra.