ລິ້ງ ສຳຫລັບເຂົ້າຫາ

ວັນພະຫັດ, ໒໘ ມີນາ ໒໐໒໔

Better Street Lighting Lowers Carbon Emission


Better Street Lighting Lowers Carbon Emission
please wait

No media source currently available

0:00 0:02:45 0:00

A United Nations panel on climate change says global warming is causing extreme weather all over the world and is calling on governments to come up with new ideas to curb gas emissions. Scientists in Denmark are trying to lower their nation's energy needs with new types of smart streetlights.

ຂ່າວປະເພດຕ່າງໆ

XS
SM
MD
LG