Environmental
Extravaganza!
A Note to Start With
Global
Environmental Change is a term which is neutral in implication (ie not necessarily good or bad), because it is a process
There
has been tremendous environmental change throughout the history of the earth,
as geology has taught us
However,
we have a lot of infrastructure invested in the way things are now so
environmental change will = social/economic change
Even
in 1950s little recognition of long term damage to the environment; now almost
everyone recognizes it is happening
Geography
and Environment
Hazards
large scale, non-predictable events (like quakes, volcanoes, wildfires,
drought, flooding, industrial accidents) that can potentially cause economic
damage and injury/death
Can
be environmental (natural) or human-caused, but must effect humans
Studying
hazard is not just geophysics, but also looking at social responses as well
Has
increasingly become part of urban, regional planning in the form of
preparedness
Remote
Sensing Collecting data from a distance, often using aerial photography or
satellites; important for tracking ground cover changes, environmental
monitoring
Environmental
Modeling Trying to reduce the number of variables to represent environmental
processes, often for predictive purposes
Used
in Environmental Impact Studies (eg water quality,
erosion, habitat loss)
Geography and Environment (cont.)
Cultural
Ecology and Political Ecology
Cultural
Ecology studied how subsistence patterns and cultures of rural groups are
adjusted to local environmental conditions
Similar
to Anthropology in where studies were done, but focused on environmental
impacts more
Built
on earlier environmental determinist school, which thought that peoples
environment caused them to have certain types of societies
Political
Ecology emerged as term in the 1970s to focus on the way environment became
politicized
Michael
Watts, Rod Neumann (FIU Geography) are both prominent political ecologists
Still
focuses largely on rural, agrarian, third world, but uses critical theory
to contextualize human-environment relations as part of uneven global processes
(not just studying cultures, but studying pressing issues through cultures)
Geography and Environment (cont.)
Critical
theory is about highlighting unequal power relations, arguing against the status quo, and
thinking of a better way
»
Includes
Post-Marxism, post-colonial theory, discourse analysis, feminism, actor-network
theory
Eco-feminism
(linking environmental oppression with gender oppression); indigenous rights
especially highlighted
Research
done to uncover the hidden geographies of commodities, especially food, from
which we are alienated (often called commodity chains)
Remind
people of all the social, economic, political and environmental impacts of what
they consume
Discourses
(way we think, write and speak) about nature also matter in nature
For
example, viewing the earth as a list of separate resources (coal, iron, water,
fish) vs. an interconnected system would tend to produce very different
treatments of the environment
Some
religious discourses on the environment, which translated to different material
treatments of the environment
Judaism, Christianity, Islam God created nature
for people benefit from. People above nature, nature is a resource, but
requires responsible stewardship.
Taoism Chinese Religion which sees nature as
something to be contemplated and revered, and harmonized with
Religious
Views of Environment
Buddhism Sees all of nature as related in a web,
humans are part of nature, but are also caretakers as the only ones capable of
conscious action
Hinduism Believes all beings (humans, cows, bugs) have
role to play in universe and that if the balance is not upset, nature should
provide.
Animism View that all natural phenomenon (trees,
rocks, people) have spirit or consciousness
Global
Environment Problems
Defined
as either impacting
A
system which is global in scale: atmosphere and ocean
In
a significant way the total amount of a resource available: wetland, forest,
soil fertility, biodiversity
There
is a problem in measuring impact
Many
statistics published outside peer reviewed journals, which would help guarantee
quality of work
Ecosystems
are complex, and models have difficulty accounting for all variables
Predictive
theories require years to judge correctness
Argument
between those who want to prepare for the worst (even if it doesnt happen) and
those who think things will work out
But
in general, most agree human impacts are now as large as many natural process (eg sulfur, nitrogen, methane)
Only
been since industrial revolution this is so; mostly since 1950s
Resources
All
but the least complex societies have taken more from the environment than they
gave back
This
is the myth that earlier societies were by nature ecologically sound
Much
of the Mediterranean environment has been severely degraded over the centuries
Now
fertilizers, plow techniques, other technologies can slow the rate of fertility
loss
Just the tip of the iceberg?... rising populations
all have rising expectations for living standards (more people wanting more
stuff)
This
now includes most everywhere, meaning there are few places to pass the buck of
environmental damage off to in order to get more resources
Resources (cont.)
Still
dependent on non-renewable resources
Still
have not reduced degradation of fish, forests, and water
60%
of the worlds fisheries are in decline, at the same time world demand for fish
is on the increase
The
only option is fish farming, which produces less nutritious fish and requires
massive ecosystem change and use of antibiotics
Even
new information economy needs material (such as rare Earth minerals) for
cables, chips, discs, monitors, etc.
However,
new finds mean that reserves for materials are larger than they were in 1950
Also,
if a price of resource gets too much, likely to see substitution or increased
recycling (e.g. 50% of iron and steel in U.S.)
However,
many of the new finds are lower quality and harder to extract, meaning
environmental costs of getting at them is higher
Benefits
tend to go to wealthy areas; problems to poorer extraction areas
Water
Many
commentators feel that fresh water scarcity will be the issue (more than
oil scarcity, and at least equal with sea level rising)
Already
a major stumbling block in Arab/Israeli negotiations; a tension between states
in U.S. West
Much
of the worlds fresh water goes into agriculture, which allows agriculture to
be productive
However,
richer you are, more water you use
Because
of water demands 2/3 of people by 2025 will live in water stressed areas
160
million cubic meters of pumped from aquifers than replaced annually
Right
now, there are a no close substitutes except for desalinized seawater, which is
ridiculously expensive
Used
primarily in Persian Gulf
Burns so much fossil
fuel, electricity production or aluminum smelting is often a by-product
Irrigation
More
than anything else, has allowed humans to expand their environment
Earliest
civilizations (Tigris/Euphrates, Nile, Indus) grew up around irrigated
agriculture
Some
think bureaucracies grew to manage irrigation, not that irrigation designed by
bureaucracies
The
Central Valley of California, the most productive agricultural area in history
of world, entirely dependent on irrigation
Hot
Spot: Aral Sea
The
most prolonged, intentional ecological disaster
Soviet
Planning tried to develop cotton industry in very dry central Asia
Aral Sea (cont)
25%
of water which once flowed into Aral Sea now reaches it
Has
split into two parts, lost 90% of volume
Kazakhstan
building a massive dam to save northern part
Destroyed
caviar industry, led to increased TB, lung disease
Food
Some argue that the West has entered a new Food
Regime (a specific set of links that exist among food production,
consumption and marketing)
No
longer based mostly on wheat and cattle
Although
this regime is growing in popularity in non-West
Rising
importance of fresh fruits and vegetables, as well as local and organic
Rising
consumption of cocoa, coffee
Increasing
importance of fish and poultry
Factory
chicken and hog farming are involve incredible pollution, done as far from the
eyes of regulators as possible
Philippines
has become an increasingly important location
Food
and Bio-resources
New
revolution in crops based on bio-engineering
Large
corporations used genetic modification to improve color, taste, size,
longevity, maturation rate
Combining
fish DNA with tomatoes to improve shelf life
Might
decrease dependence on fertilizer and pesticides
Might
have unforeseen consequences for bio-diversity
Seeds
more expensive
Crops
dont provide seed, some have terminator gene which requires purchase of
chemical from seed manufacturer in order for seed to grow.
Many
companies patenting genetic codes for traditional medicines, possibly parts of
the human genome
Question
about knowledge belonging to all or to companies
Forests
½
of all wood cut burned for fuel
In
Sub-Saharan Africa, 90% of population does this
1/5
of wood used for paper
Most
of this comes from managed forests in U.S. and Europe
Often
these forests arent as biodiverse as old growth
Many
Tropical Forests are lost to cropland and fuel wood collection, not just
hardwood harvesting
Brazil
had begun a more effective crackdown on cutting in its rainforest, problem of
hardwood cutting beginning to shift elsewhere in Amazon basin to SE Asia
Soy
Beans, however, are threatening the rainforest as more is chopped down to make
room for fields.
Pollution
Geographers
are interested in pollution b/c displays spatial variations in source and
impact, and is about human/environment interaction
Pollution
is substances introduced into the environment by human activity (manufacturing,
farming, transport, sewage) that damage it from a human perspective
Natural contamination is introduction of substances through
processes like volcanoes and mineral springs; human contamination is
like pollution, but not damaging
Becomes
an issue when supply of contamination exceeds ability of air, ground or water
to disperse or convert the pollutant
Often
acute (quick severe) forms of pollution get more attention than chronic and
continuous (slow building) issues
Pollution (cont.)
In
developing world, pollution often dumped on land with no clear title
In
the U.S., Appalachia and the Mountain West often home to the worst
environmental offenses, like mountain top removal and mine chemical
contamination
Even
well controlled activities which normally leak very little pollution, can, if
faced with crisis, turn into a catastrophe (eg
Kuwaiti oil wells, Bhopal, Chernobyl)
Acidification
(from ammonia and sulfur emissions) has been a major problem associated with
industrialization in the Northern Hemisphere
Changes
soil pH, which changes what can grow (in Eastern Europe, killed trees)
Melts
marble, putting many monuments are at risk
Hope
in the case of Ozone depleting products: businesses and governments helped
force a switch to comparable, but less harmful, substitute chemicals
Sustainable
Development
Again
it is meeting the needs of this generation without jeopardizing those of
future generations
Sustainable
Development proponents divided into techno-centric (green tech, better
planning) and eco-centric (radical change to society) approaches
But,
like Geography, is at the intersection of environment and
social/political/economic issues
Most
official approaches have included science, wildlife conservation, multilateral
economic agreements, and technology solutions
Proposals
for radical change rarely get much official policy traction
Wildlife
focus comes from powerful U.S. NGOs like WWF, Sierra Club
Developing
countries feared multilateral agreements would hamstring their attempts at
economic development
Thats
why the term sustainable development is so appealing has something for
everyone
Sustainable Development (Cont.)
Ideas
first put forth in World Conservation Strategy (1980), then Our
Common Future (1987); argued at Rio Earth Summit 1992
Rio
saw some movement in some areas, but has been woefully under-funded
Government
Sustainability actions
Public
regulation of pollution
Includes
regulations proposed by multilateral treaties like Convention on Biological
Diversity
Tax
penalties
for polluters
Subsidies
for new greener technology
Market
Environmentalism
An
individualistic, anthropocentric idea that environmental management will get
better the more parts of it that get assigned a value
The
idea is that in the rush to development, the true cost of environmental damage
is not figured in; so it is important to do so
Groups
that do not like regulation tend to like this approach
Central
concept is that the environment provides natural capital, which includes
goods (fish) and services (breathable air) which are central to economic
activity
So
ideally, that if natural capital has a real price put on it, a project like a mine would either
have to offset by creating natural capital elsewhere, or by investing in human
capital (water treatment, clinics) near the mine
Is
very attractive b/c it avoids the tragedy of the commons by making big users
actually pay for their use
Some
environmentalists are less enthusiastic, saying 1) some natural things cannot
be substituted for 2) we dont know at the time the true harm that is being
done, so we cannot price assets properly and 3) it gives incentives to dump
pollution on poor places that will inevitably price their nature more cheaply
Also,
after the last few years, people are less enamored with markets in general
Carbon
Trading
CO2
trading is by far the most advanced of these priced environment schemes (even
though its only about 7 years old)
How
it works:
Caps
(ie Limits) for Carbon Emitters (both countries and
private entities) are set
In
EU, other Kyoto signatories it is mandated by legislation
In
U.S., it is currently voluntary nationally, although the NE states are moving
quicker to make it mandatory within their borders, forming the Regional
Greenhouse Gas Initiative for a power plant cap and trade system
If you make it your cap target, great. If you go over
You
get a Carbon Offset (eg Certified Emissions
Reduction).
Some
countries, like Russia, have lots of territory and thus come way under their
caps. They can trade their surplus
They
can also buy future Carbon Offsets from a Carbon Exchange (like Chicago Climate
Exchange or European Climate Exchange) which takes that money and distributes
it to projects being run (mostly in the developing world) to capture carbon
Carbon Trading (cont.)
There
have been some kinks:
In
Europe, where these are mandated, caps have been set too high, so not as much
buying of the futures is being done as one would think
These
markets only work if you force entities to buy credits, high caps defeat that
purpose
A
lot of projects have been certified, meaning there is an oversupply
Thus
the price for offsets is low (it should be about 35 Euros to really be punitive
and make projects viable), as of today, it was 14 (and was actually 1 2008)
The
problem is that prices should be so high that companies find it cheaper to use
green technology themselves and stop buying credits
Although
the company that manages the market did turn a profit for the first time on
increased trading volume
Biofuels
The
idea is that you can get fuel (biodiesel, aircraft fuel) from recently living organisms instead of long dead ones (ie
oil, natural gas, coal)
For
automobiles, what was looked to is ethanol (essentially grain alcohol) from
crops like wheat, sugarcane, corn, sugarbeats
Its
advantages included: it is renewable (always grow more), for the U.S. we dont
get it from politically messy states, it doesnt emit other pollutants like
gasoline does (carbon monoxide, nitrous oxides, sulfur dioxide); and the plants
absorbed CO2 in growing (no net gain)
Now
countries are mandating cars to be flex-fuel (that they can run on ethanol or
gasoline) helping increase production (w/ high gas prices)
Problem:
not all crops are equal ie, you get more ethanol
cheaper from sugar than corn
Great
for Brazil, which is the ethanol leader with its sugar industry
»
Except
this is leading to rapidly expanded farming, which is leading to Rainforest
being cut
In
the U.S., we continue with less efficient corn b/c it politically pleases Great
Plains states
»
Problem:
It makes corn more expensive, both human corn and animal feed corn, leading to
food price inflation
»
Also,
little carbon savings b/c of tractors, ethanol refining
Biofuels (cont.)
But
there are other options
Second
generation biofuels
Getting
them from non-crop plants like prairie grass, or leftover material like corn
stocks
Better
because leftover is already harvested, restoring the parries improves
biodiversity (though still requires harvesting and refining), can be grown on
more marginal land, wont drive up food prices
Algae
based methods
Using
algae (which grows anywhere) to produce ethanol
It
photosynthesizes much more efficiently with less water than any plant crop
»
It
can even thrive in salty water; can be used in a closed system where the CO2 is
fed by a power plant smokestack
Enzyme
based methods
Turn
anything with organic (carbon) material into ethanol
This
includes old tires, plastic, sewage
Coskata is one company that does this, GM has
invested heavily in them.
These
will become more viable as regulations require not just ethanol, but non-food
ethanol
Also
wind, tidal (especially in S. FL), geothermal, solar, hydrogen fuel cell being
looked at
Likely
in the future, no more than 25% of energy will be from anyone source
Relying
on diverse sources is probably a good thing for security