What factors might have caused atmospheric CO2 variations that kept pace with glacial climate fluctuations?

What will be an ideal response?


The magnitude of the biological pump, as controlled by nutrient availability (including Fe) could have led to a positive feedback look on glacial-interglacial timescales. Growth of coral reefs as sea-level rose and flooded the tropical continental shelves during deglaciation would have released CO2 to the atmosphere, furthering the warming and ice-sheet melting.

Environmental & Atmospheric Sciences

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U.S. consumers pay less than the market price of their total food costs. What are three of the hidden costs related to their food consumption?

What will be an ideal response?

Environmental & Atmospheric Sciences

A hurricane's most important source of energy is solar radiation on its cloud tops

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Despite decades of ________, the U.S. remains the world's largest ________

A) regulation, polluter B) deindustrialization, manufacturer C) conservative policies, liberal democracy D) service development, agricultural exporter E) vigorous energy conservation, consumer of fossil fuels

Environmental & Atmospheric Sciences

Each trophic level in a food chain or food web contains a certain amount of organic matter, called ____.

A. food B. energy C. biomass D. organisms E. decomposition

Environmental & Atmospheric Sciences