NASA | Ask a Climate Scientist: Climate Change and Humans

The video discusses four major ways climate change affects humans: altering water resources due to changes in rainfall, rising sea levels from melting polar ice, shifts in species distribution affecting agriculture, and ocean acidification impacting marine life and food webs.

What is one major effect of climate change on water resources?

• Decrease in global rainfall

• No change in water resources

• Increased rainfall in all regions

• Redistribution of rainfall affecting water availability

How does the melting of polar ice affect coastal areas?

• It causes sea levels to rise, impacting coastal cities

• It increases the land area of coastal cities

• It leads to a decrease in sea levels

• It has no effect on coastal areas

What change in agriculture is expected due to climate change?

• Shift in the range of areas suitable for growing certain crops

• No change in crop distribution

• Expansion of tropical crops to polar regions

• Decrease in agricultural productivity worldwide

What is a potential consequence of increased ocean acidity?

• Improved marine biodiversity

• Stabilization of the food web

• Radical alteration of the ocean food web

• No impact on marine life

Which of the following is a possible effect of ocean acidification on humans?

• Increased availability of seafood

• No impact on human food sources

• Improved atmospheric composition

• Reduced ability of oceans to provide food