which is the best thesis
A. Because air pollution is of serious concern to people in the world today, many countries have implemented a variety of plans to begin solving the problem.
B. So far, research suggests that zero-emissions vehicles are one solution to the problem of steadily rising air pollution.
If you are going to discuss just vehicles, B. If you are going to consider other alternatives, A.
Determining the best thesis depends on various factors, such as the context of the essay or research paper and personal opinion. However, I can explain how you can evaluate the two thesis statements and choose the one that aligns better with your intended purpose:
A. "Because air pollution is of serious concern to people in the world today, many countries have implemented a variety of plans to begin solving the problem."
This thesis statement focuses on the issue of air pollution being a significant concern and highlights that many countries have initiated plans to address this problem. It suggests that the essay will discuss the plans implemented by different nations. If your intention is to provide an overview of various countries' approaches to combating air pollution, this thesis can be effective.
B. "So far, research suggests that zero-emissions vehicles are one solution to the problem of steadily rising air pollution."
This thesis statement puts forward the idea that zero-emissions vehicles can be a solution to the increasing air pollution problem. It indicates that the essay will primarily focus on exploring the role of zero-emissions vehicles in tackling air pollution. If you aim to discuss the specific solution of zero-emissions vehicles and provide supporting research, this thesis is a suitable choice.
Consider your purpose, the available evidence, and the scope of your essay when deciding which thesis statement aligns better with your overall argument. Remember that the best thesis may also vary based on the requirements set by your instructor or the specific writing prompt.