In Singapore, the annual mean surface temperature has risen from 26.8°C in 1948 to 27.6°C in 2011. The mean sea level in the Straits of Singapore has increased by about 3mm per year over the past 15 years alone, and are expected to change further . Rainfall has also been more intense in recent years. In 2001, the first recorded cyclone near the Equator, Typhoon Vamei, swept just north of Singapore and caused major floods in the region. It is uncertain whether such tropical cyclones near the Equator will occur more frequently in the future. In addition, countries from which Singapore imports food may experience extreme weather events such as intense storms, flooding and prolonged droughts. Extreme weather events also lead to travel disruptions, and impact business supply chains. Clearly, Singapore cannot be completely insulated from the impact of climate change.