Lecture 18- Evidence Against Anthropogenic Global Warming

Question 0

How do rising temperatures affect atmospheric carbon dioxide concentrations?

Answer 0

As oceans warm solubility of CO2 decreases releasing CO2 into the atmosphere

Question 1

Why should the northern hemisphere be warming faster than the southern hemisphere?

Answer 1

Northern hemisphere has more landmass and more greenhouse gas emissions

Question 2

What is the modern maximum?

Answer 2

Sunspot activity since 1935 has been greater than during the past several centuries

Question 3

What is the name of the lower atmosphere?

Answer 3

Troposphere

Question 4

What is the effect of El Niño Southern oscillation?

Answer 4

Warming occurs during strong El Niño years and cooling occurs during strong La Niña years, but increase of temperatures during recent years is not correlated with El Niño or La Niña

Question 5

What is the scientific consensus on the contribution of natural causes to recent global warming?

Answer 5

Natural causes especially increase of solar radiation are probably responsible for warming trend before 1950 but human activities along with natural causes best explain climate change since 1950