Unit 4 Flashcards
where is climate change most damaging
arid and semi-arid tropics
where is the largest population affected by extreme heat
india
where is the worlds worst air quality
delhi
what are some climate related health affects
increasing impact of heart and lung disease, worsening pregnancy outcomes, disrupting sleep, limiting peoples capacity to work and exercise
what is the most densely populated region facing water stress
south asia
what are the agricultural affects of climate change
reduced soil moisture and groundwater, reduced growing seasons, increased desertification risks, reduced food security
how many people in rural areas are involved in agriculture
2.5b of 3b
what are the characteristics of the sahel
tropical stepps/savanah turns into grassland with widely spaced shrubs and trees. extreme seasonality of precipitation
what is needed for culture
soil must retain moisture for at least 120 days
what is desertification
reduced areas where agriculture are possible, less capacity for vegetation to rebound from dry seasons
how much of the world depend on seasonal melt from high elevations snow/ice
about half
what are the short term effects of decreasing high elevation snow and ice
heightened risk of flooding, massive inundation with summer melt season
what are the long term effects of decreasing high elevation snow and ice
river volumes falling in dry season