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Biological Consequences of Global Warming, :arrow_lower_left:, :arrow…
Biological Consequences of Global Warming
Effects in oceans
increased CO2
levels mean
pH reduces
and
phytoplankton levels reduce
, damaging other food chains
coral bleaching
results in disruption of
food chains
Effects on cold (polar) climates
increased temperatures
mean glaciers
melt
, causing
flood risk
and
extinction
permafrost could thaw
, releasing
carbon dioxide
and
methane
Effects on temperate climates
increased temperatures
mean
increased crop yields
in some areas
Temperate forests
are major
carbon sinks
, if temperatures
increase
, more
photosynthesis
occurs
CO2 levels increase
, and a new limiting factor results
Effects on warm (tropical) climates
increased CO2 levels
increased temperature
results in
decrease
in rainfall, and
drying
of rainforests
decreases
biodiversity and forest cover
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increased temperatures
lead to a
higher incidence of vector-borne diseases
increased temperatures
mean
less
rainfall which means
lower
crop yields in areas such as Africa
Ecological Decoupling
flowers
length of growing season
Many species are expected to have a
longer
growing season
This leads to
greater CO2 fixation
, increasing atmospheric CO2 levels
Coupled with changes in
bird migration
, there may be a decoupling in the interaction of these species
Many plants are
flowering earlier
, and some
later
This could create
new hybrids
These changes could alter chances of
cross-pollination
These hybrids would have possibly damaging effects to
ecosystems and food chains
birds
Many birds are
arriving later
, and some
later
Coupled with changes in
plant phenology
(development), there may be a decoupling in the interaction of these species
As more of them survive the winter, they may face
competition
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