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deer deer deer moose deer moose moose

kaaaaat h

on 4 June 2015

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Transcript of GLOBAL WARMING

B.C. 2050: What climate change will do to our province
Why 2050?
“ if we haven't curtailed our fossil fuel emissions by then, warming will be an irreversible trend”
Near total loss of glacial ice in B.C., Alberta expected by 2100, researchers say
1. What are the long-term effects of global warming?
2. When did people start to notice global warming?
3. What can we do to lower greenhouse emissions and prevent further problems?
4. Is what we’re doing helping to slow down the warming process?
5. Which countries contribute the most to global warming?
6. How is Canada doing its part in reducing greenhouse gases?


- Passenger vehicles/light trucks: final regulations limiting emissions from cars and light truck models 2017 & beyond were released, new vehicles will consume up to 50% less fuel

- Heavy duty vehicles: government announced more regulations to reduce GHG emissions and fuel consumption, emissions will be reduced by 23%

- Amendments to the Sulphur in Gasoline Regulations will reduce the average sulphur content of gasoline by nearly 70 per cent beginning in 2017

- Regulations applied a strict performance standard to new coal-fired electricity generation units and to coal-fired units (responsible for 11% of Canada’s GHGs)

- New performance standard for coal-fired electricity generating units will come into force on July 1, 2015

- Gasoline is required to contain an average 5% renewable content, diesel fuel requires 2% renewable content

1. Warming of lakes and rivers
1. Reduce energy use

- Turn off the lights
- Replace standard light bulbs with energy-efficient compact fluorescent bulbs
- Turn off electronics when they are not in use
- Use high-efficiency electronics

2. Change the way you think about transportation

- Walk, bike, take public transit or carpool whenever possible
- When purchasing a vehicle look for one with better mileage
- Plan and combine trips and errands

3. Insulate your home

- Purchase windows and coverings that will block out or keep in warmth, and seal any existing cracks
- In winter, reduce your thermostat by 2 °C
- Lower the temperature on your water heater to between 55 and 60 °C and insulate your pipes

4. Recycle

- Recycle all packaging and consumer goods that you can
- Aim to purchase items with minimal and recyclable packaging

5. Planting

- Select plants that are well suited to your climate and require minimal watering and attention
- Plant a tree, and it will provide shade and soak up carbon from the atmosphere







Dead zones = warmer upper layer in deep lakes slows down air exchange, creating "dead zones"
Effects on reproduction = global warming affects the reproduction of aquatic species/ decline in population
Local eg: Rising temperatures are threatening the salmon population in BC
Global warming is the consequence of human advancement over the past centuries. It is important to take action because it impacts our planet and affects our survival.
2. Plant and animal migration
4. Higher sea levels
5. Desertification
6. Additional Costs
7. Human Health
Loss of habitat = due to changing environments which will cause their extinction as they will have not enough time to adapt
Rising temperatures will gradually melt the the glaciers, causing sea level rise
Salt water intrusion = salt water intruding into groundwater, drinking supplies, contaminates irrigation supplies
Threats to communities = high tides and storm surges
Affects global climate change through soil and vegetation losses
As fertile land turns to desert, carbon stored in the drying land vegetation and soil is released to the atmosphere
Effects: soil becomes less usable, famine, people near affected areas, food loss, damaged vegetation
1, 000,000 people die from climate change-related diseases on a yearly basis
Changes in weather conditions can lead to health conditions ranging from heat-related heart and respiratory problems to malaria
Poor air quality
A warmer world bring changes in "disease vectors"
Damage to property and infrastructure
Mass migration
3. Frequent wildfires
Drier conditions will increase the probability of fire occurrence
Local eg: BC wildfire in 2003
Renewable Fuels:
Effects of global warming in B.C. by 2050:
Pests and fires will become more prevalent.
- warmer, drier summers

- warmer, wetter, and shorter winters

- improved survival rate of pests

- forests on the North Shore mountains will be dying

- Old-growth rainforests and salmon runs will be dead or dying off

"British Columbia is going to be transformed into something very different within the lifetime of a human. "
- annual temperatures to warm by 2°C - 7°C

- Greater Vancouver's average temperature will be where northern California's is today (10°C - 25°C)

- change in precipitation patterns

- warmer temperatures = new regions for agriculture

- Winters on Whistler will be as mild as on Grouse Mountain today (0°C - 5°C)

- low-lying municipalities are in danger of flooding
due to rising sea levels
CTV news
Canada's lack of immunity to global warming
Climate Change in the Canadian Arctic
How climate change affects the lives of Inuit people of Canada
"Glaciers will be largely a thing of the past in Western Canada by 2100"
- 70% of glacial ice in BC is likely to disappear

- The Rockies are expected to lose more than 90% of the ice that was present in 2005

- South Coast Mountains are projected to lose 75% of their ice area and 70% of their volume

-B.C. sustains 3000 cubic kilometres of ice

- this is projected to degrade 60%-80%

-maximum rate of ice volume retreat is projected to occur between 2020 and 2040

-changes are likely to be largely irreversible

-most resilient glaciers are those in the mountains of B.C.'s north coast
Importance of Glaciers in B.C.
Glaciers play a key role in freshwater ecosystems
-provide important buffering in water when the normal snow melt has been depleted

-provide cool water that is important for many of the aquatic ecosystems

- removing that thermal buffer can potentially stress those ecosystems

- can affect fish such as salmon that thrive in cold water
Glaciers are important for hydroelectric power (BC Hydro).
- glacier melt in late summer can provide up to 20-25% of flows

- glaciers supplement the normal snow melt generated flows especially in dry years
Athabasca Glacier
Global warming is the increase of the average air temperature near Earth's surface. This is a natural process, which started about 18,000 years ago. Nobody started noticing the rapid increase and its consequences until the second half of the 20th century during the Industrial Revolution. In 1997, the problem of global warming was addressed officially.
Gases that trap heat in the atmosphere are called greenhouse gases.

Carbon dioxide:
burning fossil fuels (coal, natural gas,oil), solid waste, tree and wood products, certain chemical reactions (manufacturing of cement).

production and transport of coal, natural gas, and oil, livestock/other agricultural practices, the decay of organic waste in solid waste landfills.

Nitrous Oxide:
agricultural and industrial activities, during combustion of fossil fuels and solid waste.

Fluorinated gases
: emitted from a variety of industrial processes.
- New technologies and techniques in machinery, heating, lighting and ventilation can significantly cut energy use, production costs, greenhouse gas emissions and pollution

- A cap and allowance emissions trading system would place strict limits or "caps" on the emissions from large industrial sources. Sources emitting less than their cap could sell these "surplus allowances" to others
Solutions for Canada's Industry
- all articles had predictions of the causes of global warming
- all articles presented the topic clearly
- all articles focus on global warming damages in Canada
- all articles end with a strong statement
- Vancouver sun and canada.com presented data
- canada.com didn't present any image that complements the text
- canada.com provides an ending with further discussion questions
Is the advancement of industry worth the risk of further global warming?







Global warming is the consequence of human advancement over the past centuries. It is important to take action because it impacts our planet and affects our survival.
Full transcript