We’ve had rain over the last few days in Singapore; some feel it’s helped a little in washing the haze from our air. But, is rain really a blessing for haze-affected countries like us, or could it lead to other problems? Daniel Martin finds out more from Assistant Professor Wang Jingyu from the National Institute of Education at NTU. He's a Principal Investigator, Climate Transformation Programme, Earth Observatory of Singapore, and Cluster Lead for Extreme Heat, Centre for Climate Change and Environmental Health.