@saifulislam5 Congratulations on participating in this beautiful contest. Currently, global warming is a hot topic all over the world. The temperature has crossed 42° in some parts of Bangladesh. Excessive heat is making life miserable. The main reasons are rampant deforestation, and pollution from factories and vehicles. To save the world from this problem, we need to plant more trees, use electric public transport. Plant more trees, save the world, save the environment.