Защита проекта.выделить главное от 5-8 предложений.заранее .если есть ошибки,исправьте by 2050, the world will live 9.6 billion people - 2.6 billion more than today. at the same time a growing middle class in india and china are already eating more meat than ever. population grows in the most inconvenient time. to defeat global warming, humanity must be given more acreage for the cultivation of raw materials for biofuels. at the same time cutting down forests for new agricultural land is also impossible - and so the planet is choking on greenhouse gas emissions, in the last year they broke all records. to feed new mouths, farmers must increase productivity. but not all is so simple. cereal production should increase by half, that there was no lack of food.40 years this will not be enough. scientists note that the growth in crop yields is not the same throughout the world. for example in some parts of india and eastern europe does not increase the yield for many years. in many parts of the world increase in performance is not due to insufficient investment in agriculture. even where the service delivered to farmers all the achievements of science, improve performance more than a certain level will not work, because nature does not allow to grow in one area over a certain amount of grain.

By 2050, the world population will have grown to 9.6 billion people - 2.6 billion more than today. at the same time, growing middle class members in india and china are already eating more meat than ever. the earth population is growing in the most inconvenient time. to prevent global warming, the humanity should have more land to cultivate raw materials for biofuels. at the same time, cutting down forests to provide more land for agriculture is impossible - and so the planet is choking with greenhouse gas emissions, in the last year they broke all records. to feed additional mouths, farmers must increase productivity. but not everything is so simple. cereal production should be increased by half, that there would be no lack of food. in 40-year time there will not be enough of it. scientists note that the growth in crop yields is not the same throughout the world. for example, in some parts of india and eastern europe the yield has not been increasing for many years. ниже надо перефразировать – затруднено понимание смысла. in many parts of the world, the increase in performance is not due to insufficient investment in agriculture. even where the service delivered to farmers all the achievements of science, improve performance more than a certain level will not work, because nature does not allow to grow in one area over a certain amount of grain.

Можно так: 1. may. 2. must 3. should. 4. might 5. ought to 6. needs to 7. should или have to. 8. can 9. may. 10. should или have to.