Just as human activity is upsetting Earth's carbon cycle, our actions are altering the water cycle. — David Suzuki Copy Share Image
Grief is an element. It has its own cycle like the carbon cycle, the nitrogen. It never diminishes not ever. It passes… — Peter Heller Copy Share Image
We cannot hope to either understand or to manage the carbon in the atmosphere unless we understand and manage the trees and… — Freeman Dyson Copy Share Image
Unless we decide to reduce greenhouse gas emissions within just a few years from now, our destinies will already be chosen and… — Mark Lynas Copy Share Image
The world beyond 450 ppm atmospheric concentrations of carbon dioxide, the world that crosses carbon cycle tipping points that quickly take us… — Joseph J. Romm Copy Share Image
Plate tectonics is not all havoc and destruction. The slow movement of continents and ocean floors recycles carbon dioxide dissolved in the… — Seth Shostak Copy Share Image
The essential fact which emerges ... is that the three smallest and most active reservoirs ( of carbon in the global carbon… — Freeman Dyson Copy Share Image
My first goal would be to reduce the perturbation in the carbon cycle. That would mean using carbon neutral sources of energy,… — Annalee Newitz Copy Share Image
“By planting rye I am creating carbon sinks in my backyard, expanding my role in the carbon cycle, launching my own backyard… — Amy Seidl Copy Share Image
The oxygen cycle, the nitrogen cycle, the carbon cycle, the water cycle - all of these are linked to the existence of… — Sylvia Earle Copy Share Image
We have decisively changed the carbon cycle, the nitrogen cycle, and the rate of extinction. — Rob Nixon Copy Share Image
The fact that we have been able to perturb the carbon cycle with our industrial revolution is evidence of how vulnerable we… — Annalee Newitz Copy Share Image
It's only been in the past two generations that we truly understood the impact our civilization has had on the natural world.… — Annalee Newitz Copy Share Image
Some time ago we discovered the carbon cycle - a long-term set of chemical reactions that govern climates based on how much… — Annalee Newitz Copy Share Image
