Essays providing solutions to problems are pieces of writing in which we present a problem and its causes, then discuss our suggestions as well as their expected results.
In the first paragraph, we present the problem and its causes.
In the second, third and fourth paragraphs, we write our suggestions and their expected results. We write each suggestion and its results in separate paragraphs. We should link our ideas using appropriate linking words.
In the last paragraph we summarise the outcome of the suggestions.
Such essays are normally written in semi-formal or formal style, depending on who is going to read them and where it is going to be published. They are usually found as articles in magazines, newspapers, etc.
To make our piece of writing more interesting to the reader, we can use certain techniques to start or end it such as:
addressing the reader directly. If you want to help the environment, there are lots of things that you can do.
using a quotation (a sentence/phrase from a book, a play, etc). Don't forget to mention the name of the person who said / wrote it. … as American anthropologist Margaret Mead said "We have nowhere else to go, this is all we have".
using a rhetorical question (a question that makes a statement rather than expecting an answer). Is it important to protect endangered species?
It would help if ...
It would be a good idea if....
A / Another useful suggestion would be to …
The situation could be improved if / by …
Steps / Measures should be taken in order to solve / deal with …
In this way …
This would …
Then …
If …, the result would be …
The effect / consequence / result of … would be …