ERTH 1050 - Climate an Extinction

What does atmospheric chemistry?

What are greenhouse gases?

how much long wave radiation from the surface the re-radiates into Earth’s atmosphere

What determines a mass extinction?

If 75% or more species die at a time

What is the greenhouse effect?

An uncontrollable increase in temperature due to unbalanced volcanism and weathering rate

What is the background extinction rate?

Occurs when the reproduction rate < mortality rate

What causes a global hothouse?

Too much volcanism and too little weathering

What causes a global icehouse?

Too much weathering and too little volcanism

Mountains and high weathering rates cause ____ temperatures

Lowered

Volcanism (except for supervolcanoes) causes ____ temperatures

Higher. Supervolcainc ash clouds lower temps

What is the goldilocks zone?

The best conditions to maintain life

What affects global climate change?

Volcanism : weathering rates, orbital cycles, and hydro/biosphere interactions

What are the solar climate intervention methods used to prevent the greenhouse effect?

Reflective space cover

Increased stratospheric aerosol

Increased albedo

Increased marine clouds

Increased high altitude clouds

What is significant about the End Permian Mass Extinction

It was a hothouse that emerged from an icehouse

It originated on Pangea that had a lot of swamps → coal → fire/mantle plumes cause more fire as coal catches