Categorie: Tutti - biodiversity - ecosystems - pollution - deforestation

da Bains Mahabir mancano 2 anni

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SNC2D0 Final Assessment

Human activities such as deforestation, fossil fuel consumption, and industrial processes are significantly impacting the planet. These actions contribute to ecological overshoot and environmental degradation, leading to reduced ecosystem health and decreased biodiversity.

SNC2D0 Final Assessment

International Carbon Action Partnership

Contribute to global efforts to create a global carbon market

GHG mitigation

Bring together countries, city's, and provinces

Focus on emissions trading

Initiatives

International initiatives

Renewable energy
Less power plants

less pollutants in atmosphere

arsenic, beryllium, cadmium, chromium, & nickel

One child
Use less harmful chemical such as halocarbons
Walking and biking
Solar energy
Eating less meat
Reforestation
Paris Agreement
Goals

Saving and increasing forests

Fifty-five countries, or enough to bring the total global emissions to 55%, were needed before the agreement could come into effect

To date, 97 have joined, representing 69.22% of global emissions

Developed countries take a lead in reducing greenhouse gas emissions

Review every 5 years

developed countries must provide money to developing countries

Update and enhance technologies

New technologies

aim for greenhouse gas emissions to peak as soon as possible

developed countries must continue to take a lead for 3rd world and 2nd world countires

Rich countries must provide 100 billion dollars from 2020 as a floor

Must be payed by 2025

keep global temperatures well below 2 degrees Celsius

Global Environment Facility
Focus areas

ozone depletion

international waters

biodiversity,

climate change,

Kyoto Protocol
expand business opportunities
Sustainable businesses
The international community agreed for the first time on binding targets and measures for combating climate change
First commitment period

5 per cent emission reduction compared to 1990 levels over the five year period 2008–2012

2nd commitment period

Limit emmisoins in atmosphere

based on trades

starting in 2013 and lasting until 2020

binding emission reduction targets for 37 industrialized countries and economies in transition and the European Union
binds developed countries

Most GHG released into the atmosphere

Heavier burden on developed countries

committing industrialized countries and economies in transition to limit and reduce greenhouse gases (GHG) emissions in accordance with agreed individual targets
United Nations Framework Convention on Climate Change
Allow ecosystems to adapt to climate change

ensure that food production is not threatened and unable economic development to proceed in a sustainable manner

International environmental society
197 parties
March 21 1994
prevent dangerous anthropogenic (human induced) interference with the climate system
stabilize greenhouse gas concentrations

Earth's Dynamic Climate

Impacts

Global impact
environmental impact

Our wildlife

Wetland systems

biodiversity loss

tropical forests

Mediterranean

savanas

conifer forests

Stress on ecological systems

Harvesting

Pollution

land degradation

Land conversion

Land species move to higher elevations

Migration up north

Our oceans

Coral reefs

less due to higher CO2 levels

Oxygen depletion

Adverse affects on ocean life

less oxygen

More CO2 in oceans

Less food for fish

Affect on food chain

Energy for hurricanes and cyclones

Less cold deepwater circulation

Ocean deoxygenation

Shift in species distribution

Marine heatwaves

ocean acidification

large scale change sin ocean circulation

increased temperature stratification

rising sea levels

thermal expansion

Cyrosphere

Threat to alpine glaciers

Thickness of sea ice has decreased by 66%

Sensitive to changes in global climate

Extreme weather events

Heatwaves

Increases wildfires

high humidity

Anthropogenic greenhouse gas affect

Storms

Droughts

Overpopulation

urban expansion

increased water demand

More hurricanes

Increased intensity

More level 4 and 5 hurricanes

Changes in precipitation patterns

Most of the world will have a 16–24% increase in heavy precipitation by 2100

Wetter globally

Reduction in rainfall in subtropics

Change in water quality

Crop damage

Peak precipitation is increasing between 5 and 10% for every one degree Celsius increase

Landslides

Loss of crops and livestock

Damage infrastructure

Intense droughts and heat waves

Impact farmers

Loss of crops

More dust storms

Insect deitasses

Shortage of drinking water

Accelerated sea level rise

storm surges and high tides may combine resulting in more damage

Cause trillions of dollars of damage throughout world

Trees are flowering sooner

Change ecosystems

Animals come out of hibernation sooner

Frost free seasons lengthen

Glaciers shrink and fall off

Oceans absorb more heat

Damages coral reefs

Less marine life

Less protection against floods

economic impact

Agricultural industry will suffer

Drought

Water insecurity

Food insecurity

Shortage of food

Marine based economies suffer

Over seafood in general

Less shellfish

fish populations will go down

less breeding grounds

Greater risks to different buildings

Increased coastal and river flooding

Infrastructure

business

Homes

Social impacts

People near coastlines

Water security

Food security

Vulnerable groups

Africa

Water

Food scarcity

Environnemental migration

energy

timber

Food

Indigenous populations

Farmers

Impact on Canadian climate

Insects and disease

Mosquitos

Less clean water as floods disrupt cleavage system

Many will die

Increase due to high levels of precipitation

Loss of ice and snow

Permafrost may melt

Lots of methane

Rising sea levels

Shrinking land areas

Eroding costlines

Less positive albedo feedback

Over 20% of ice has disappeared since 1970

Increases in forest fires

Canada has 9% of the world's forests

38% of landmass is covered with forests

Increase greenhouse gas emissions in atmosphere

Billions of dollars in damage

More money gone to waste

High winds

Lightning strikes

Dry conditions

More severe forest fires

Extreme temperatures

over 719 deaths in Lyton, British Columbia

Extreme weather throughout the prairies

Negative impacts

Famous events

2013 Alberta floods

Fossil fuel industry

Increased its greenhouse gas emissions by 21.6% since 1990

Impact on society

Many Inuit populations will suffer

Live in Nunavut

Live in Yukon

Live in Northwest Territories

Live near shores

Climate

Gulf Stream may collapse next coming decades

Gulf Stream has a huge impact of Canadian weather

Rain and weather patterns may shift

Potential increase in hurricanes

Infrastructure loss

Money loss

Farmers crops

Huge impact on economy

Food industry would be down

less quantity

less quality

Sea levels would rise

Present Biomes

Desert

Grassland

Temperate rainforest

Temperate deciduous forest

Boreal forest

Tundra

Permanent ice

Direct impacts

Hotter and wetter

Increase of temperature of 1.7 degrees celsius since 1948

Sea level rise

Warmer waters

Increased positive feedback loop

Increased precipitation

Continued warming of high latitudes

Contributing Factors

Feedback
Influence albedo

Sea ice

Ice sheets

greenhouse gases

Ocean temp

Terrestrial vegetation

Important

Predict future

Volcanic activity
Release sulphur dioxide into stratosphere

Particles reflect sunlight

Good

Human acitivities
Manufactured chemicals

Depletion stratospheric and tropospheric ozone

Halocarbons

Montreal protocol

CFC's are released into the environment

Causes damage to human nervous system, kidney's, and the liver

Sunlight breaks CFC's up releasing chlorine

Chlorine reacts with ozone, and destroys it

More reactions cause more depletion of ozone

Ground-level ozone, produced by a reaction between sunlight and chemicals in vehicle exhaust, occurs near ground level as a smog-forming pollutant

Decreased plant growth

Phytoplankton and zooplankton very sensitive and die

Damage animal cells

I

All marine life is affected (butterfly affect of food chain)

cause various types of cancers

ageing of skin

damage to skin cells

Chemical reactions happen which break down ozone particles

Fossil fuels

Excess nitrogen in atmosphere

creation of smog

can cause asthma

Narrow airways

Damage plant cells and inhibit growth

Worsen existing heart and lung problems or perhaps cause lung cancer

irritate your eyes, nose and throat

Ocean acidification

Air pollution

Emissions

Water pollution

Land degradation

Flooding

Descertification

Decline of quality of life of people

Less trees

Increase greenhouse gas emissions

Soil erosion

Threatens water systems

Acidic oceans

Increase of pH

Trophic cascade

Toppling entire ecosystems

Power plants

emit arsenic, beryllium, cadmium, chromium, & nickel

neurological problems

air pollution

asthma, cancer, heart and lung ailments

Overfishing

Impact the economy

Change food chain

change reproduction rates

Oil drilling

Poor water quality

Groundwater contamination

clearing an area of vegetation

Habitat loss

Disturb land and marine ecosystems

Transport and vehicals

Use complete combustion of hydrogen and carbon

Each oxygen atom connects up with two hydrogen atoms to form water.

Oxygen

Latitude
More sun

6CO2 + 6H2O → C6H12O6 + 6O2 + 6H2O

Synthesis reaction

Balanced chemical equation of photosynthesis

Plants produce glucose and oxygen from carbon dioxide and water in the presence of sunlight.

Temperatures drop the further an area is from the equator

Due to the curvature of the earth

More energy is lost

Temperatures are cooler

Weather
Clouds
Precipitation

More wildfires

More droughts

More floods

Wind
Temperature

Increased temperatures

Habitat destruction

Increased drought

Less plants

Animals wake from hibernation sooner

Migration happens at different times

Plants grow/bloom earlier

Survive longer in fall

Less ice

Less ice albedo feedback

Oceans exposed

Increase in absorbed sunlight

Thermal expansion

Impact on food chain

Longer heat waves

Body becomes warmer

Blood vessels open up

Lower blood pressure

Heart works harder to push blood throughout body

Blood may clot

Heart attack may occur

Sweating

Swollen feet

Heat rash

More heat waves

Negative health affects

Overconsumption
Increased air pollution

Acid rain

PH of rain falls between 2 and 5.5

Natural water systems acidic

Increased climate breakdown
Reduced ecosystem health

decreased biodiversity

Less production ecosystem

Enviormental degradation

Animal extinction

Desertification

Biodiversity loss

Deforestation

Erosion

Ecological overshoot
Reduction in earth's carrying capacity
Food production
Global warming leads to better agriculture yields
Fertilizers

Pollution of air

Respiration

Respiratory system and circulatory system work together

Happens in plants/animals cells

energy is released from glucose

As waste products, carbon dioxide and water

All the other chemical processes needed for life can happen

Lungs expand and compress

Diaphragm relaxes

Breath in oxygen breath out carbon dioxide

Disturbance of respiration due to air pollution

Negative impact on human health

Pollution of soil

Negative impact on plants

Pollution of water

Negative impact on marine life

Food chain is disturbed

Lots of energy used
Greenhouse gas effect
Greenhouse gases keep our planet livable by holding onto some of Earth's heat energy so that it doesn't all escape into space

Traps radiation from the sun and warms the planet's surface

Sustain life on earth

a warming of Earth's surface and troposphere
Anthropogenic

water vapour

Methane

Decomposing garbage

Termites and cattle

Rice paddies

Wetlands

CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (g).

Incomplete combustion

Carbon dioxide

2CO + O2 → 2CO2

Exothermic

Combustion reaction

hydrocarbon reacting with Oxygen gas.

Elevation
Warmer in winter than places inland at the same latitude and altitude
This means that coastal locations tend to be cooler in summer
Locations at a higher altitude have colder temperatures.
Wind and air masses
a change in wind results in a change of weather

Hot and cold air

Winds move air masses,

They carry their weather conditions from the source region to a new region

Air masses reach new region

Might clash with another air mass

That has a different temperature and humidity

Ocean currents
Local heat transfer and precipitation

Winds blowing over warm currents result in a good amount of rainfall

Moisture laden

Cold currents drop the temperature along the coast

Due to global warming fewer winter deaths

Warm currents raise the temperature along the coast

clashing air temperatures

formation of clouds, fog, and cause precipitation

water vapour increases temperature & humidity of the air

Water vapour interaction with CO2

Higher level of water vapour

Reduced albedo

More water evaporating from oceans

precipitation and storms

act as conveyer belt

Warm and cold water

helping tropical areas cool off

sending heat towards polar regions