1. My suggestions is as follows
2. The following suggestions should be taken into consideration when we are seeking solutions to the problem.
3. In view of the above, I think some urgent measures need to be taken to solve this problem.
4. According to the above analyses, I would recommend that some urgent steps should be taken to put an end to the serious problem.
5. In view of the seriousness of this problem, effective measures should be taken before things get worse.
6. One way out is …
7. It will be advantageous / helpful/ profitable/ beneficial if
8. It is wise for … to do sth.
9. A second/ another solution/ suggestion is that
10. Another way of solving this problem is to
11. is one of the best approaches/ weapons / ways / solutions.
12. should, have to, must, ought to, be supposed to
13. For one thing, great efforts have to be made to … and for another …