Medan, Indonesia, March 28, 2020: One of three Indonesian people, Rimba Nasution seen using masks and hold posters under the candle lighting in the small campaign action to welcoming Earth Hour moment to resting the earth from the electrical energy used and avoid the harmfull effects of climate changes that trigger the emergence of Corona Virus Disease 19, Photo taken in journalism campus of STIKP in Medan, North Sumatra province, Indonesia on March 28, 2020.