资讯

A balanced carbon cycle is essential. Carbon is a major component in carbohydrates, fats and proteins. The carbon cycle involves the exchange of carbon between living organisms (biotic ...
Atmospheric CO2 continues to increase and, despite considerable worldwide efforts to cut down on carbon waste, is expected to rise more in coming decades. Researchers demonstrated that new, lower-cost ...
I think I will use the air conditioner less to reduce my carbon footprint. For example, maybe I will only turn it on when it reaches 30 degree Celsius outside. Teresa Kwok, 14, South Island School ...
The finding is the first evidence of a carbon cycle on the Red Planet, but also suggests that Mars lost its life-friendly climate because that carbon cycle was slow, researchers report in the ...