Dr. Gajendra Sharma, Associate Professor at Department of Computer Science and Engineering, delivered Keynote speech in the Ninth International Conference on Recent Trends in Science, Engineering, Computers and Technology (RTSECT-2017) held during 10-11 August 2017 in Singapore.   The title of the Keynote was 'Role of Big Data in Environmental Sustainability'. Majority of participants of this conference were from USA, Canada, Japan, Korea, India, Bangladesh and Russia.