It involves building connections between two events, with one being the cause and the other the effect.Also – though it is much more difficult – you may think about the ways humanity can actually help its home world.Whatever you choose, be sure to thoroughly study the researches done before you take the topic.First, it is too long and ‘wordy’ (it uses too many unnecessary words which can be omitted).Second, the opinion of the writer is not clear to the reader. is clear and concise…your essay will be focused and your reader will know exactly what to expect in the body paragraphs that follow your introduction.Example of a debatable thesis statement:'Alcohol should contain warning labels about the possible dangers of over-drinking.'This is debatable because people can agree or disagree with the proposal.Some might agree that alcohol labels should contain warnings about the dangers of drinking while others may feel that warning labels would be ineffective as they would not stop people from drinking. The first point to remember then is that thesis statements must provide room for disagreement and debate.2.Still, you can always choose a third option and combine everything, but take into consideration that in this case you will need much more time to read literature about both parts. You may choose ecological problems and write about air pollution, global warming and trash in the oceans, inventing new ways to eliminate harm done to our planet by humanity.Or you may take the role of an independent spectator and just watch how our Earth evolved through the ages and what happens to it now.MAKE IT SPECIFICThesis statements should be specific, not general.The following thesis statement is too general:'Drinking alcohol is harmful.'This statement is too broad and unfocused because it does not specify:*Who drinking alcohol harms*What drinking alcohol harms*What the main reasons are that make drinking alcohol harmful Asking specific 'Wh' questions can help narrow your focus and make your paper more manageable.