Если задан ПРЯМОЙ вопрос (да/нет, хорошо/плохо) – это всегда OPINION essay. Как здесь:

Fossil fuels such as coal, oil and natural gas are used in many countries. Recently some countries have started using alternative energy sources such as wind and solar power. Is this trend a positive or negative development?

Шаг 1: после перефразированная формулируем наше мнение + 2 аргумента почему:

While some countries are still burning natural resources, others have already shifted from this traditional way of getting energy and adopt the use of renewable resources including solar and wind energy. I consider this tendency as a positive phenomenon because such movement tends to improve the environment. Firstly, this essay will discuss the positive effect on natural resources conservation, followed by the analysis of a beneficial impact on the level of pollution.

Шаг 2: поясняем первый аргумент + пример для подкрепления вашей позиции
Firstly, using the renewable energy of the sun and wind, the countries provide an opportunity to conserve natural resources. Unfortunately, because of the constant and fast consumption of coal, oil, and natural gas, these resources are impossible to be replenished. As a result, they are considered as non-renewable and must be preserved. For instance, having carried out  research,  scientists have revealed that running of wind turbines in Germany allowed to decrease the mining in four times within the last twenty years.

Шаг 3: поясняем второй аргумент +пример для подкрепления вашей позиции:

Secondly, using alternative sources of energy helps to decrease pollution because the process of producing energy utilizing solar stations and windmills is safe for the environment. As a result, not only does it contribute to the present situation, but it also ensures the future of our planet in the long run. For example, after having installed three solar stations in Ukraine the level of pollution was significantly reduced compared with previous years.

Шаг 4: дублируем мнение в заключении + суммируем оба аргумента:

In conclusion, I strongly believe that using alternative sources of energy instead of fossil fuels must be provided everywhere because its positive effect is evident and beyond any doubt.