Sentences with phrase «energy up the food chain»

Not exact matches

In any food chain, energy flow alternates; in odd - linked systems, plants will be limited by resources available to them (top - down control); in even - linked systems, plants will be limited by grazers (bottom - up control).

Just the act of mining it out of the ground causes a fair amount of destruction (and costs the lives of many miners, especially in poorer countries), and burning it produces more CO2 than any other source of energy, as well as mercury that makes its way up the food chain and smog - forming emissions of all kinds... But that's not all!

The amount of meat we eat goes up, and it's usually working your way up the food chain toward the most energy intense, water intense, land intense sources of food — beef, at the top of the chain, or bluefin tuna at the top of the ocean chain.