**change in climate that can be identified by changes in the mean and/or variability of its properties and that persists for an extended period**, typically decades or longer, whether due to natural variability or as a result of human activity (DAO 2010-11)
2
New cards
Climate Change
refers to si**gnificant, long-term changes in the global climate**
3
New cards
GLOBAL CLIMATE
**connected system of sun, earth and oceans, wind, rain and snow, forests, deserts and savannas, and everything people do**
4
New cards
GLOBAL CLIMATE
is **more than the “average”** of the climates of specific places
5
New cards
GLOBAL WARMING
**slow increase in the average temperature of the earth’s atmosphere** because an increased amount of the energy (heat) striking the earth from the sun is being trapped in the atmosphere and not radiated out into space
6
New cards
1\. That global warming is **not occurring and so neither is climate change**;
2\. That global warming and climate change are **occurring, but these are natural, cyclic events unrelated to human activity;**
3\. That global warming is **occurring as a result primarily of human activity and so climate change is also the result of human activity.**
THREE POSITIONS ON GLOBAL WARMING
7
New cards
* CO2 or Carbon dioxide * Methane or CH4 * Nitrous oxide * Fluorinated gases * Sulphur hexafluoride or SF6 * Black Carbon (BC)
MOST COMMON GHGs
8
New cards
Carbon dioxide
**produced any time something is burned** and the most common GHG, constituting by some measures almost **55% of total long-term GHGs**
9
New cards
GWP of 1
GWP of Carbon dioxide
10
New cards
Methane
**produced in many combustion processes** and also by anaerobic decomposition; a **precursor of ozone**
11
New cards
10 years
Methane breaks down in approximately _________
12
New cards
GWP of 28-36
GWP of Methane
13
New cards
Nitrous oxide
***(laughing gas);*** byproduct of fertilizer production and use, other industrial processes and the combustion of certain materials.
14
New cards
GWP of 265-298
GWP of Nitrous oxide
15
New cards
Fluorinated gases
created as **replacements for ozone depleting refrigerants** but have proved to be both extremely warming GHGs
16
New cards
Fluorinated gases
no natural sources but are **entirely man-made**
17
New cards
1,800 to 8,000; 10,000
Fluorinated gases’ GWP at the 100-year point of comparison range from ________ and some variants top ________
18
New cards
Sulphur hexafluoride
**used for specialized medical procedures,** but primarily in what are called dielectric materials, especially dielectric liquids
19
New cards
Sulfur hexafluoride
**used as insulators in high voltage applications** such as transformers and grid switching gears
20
New cards
Gwp of 22,800
GWP OF Sulphur hexafluoride
21
New cards
Black Carbon
**tiny particles of carbon** released as a result of the incomplete combustion of fossil fuels, biofuels and biomass.
22
New cards
Black Carbon
it absorbs the sun’s heat millions of times more effectively than CO2
23
New cards
Black Carbon
considered the second biggest contributor to global warming after CO2
24
New cards
atmosphere
**normally blocks some of the sun’s infrared rays** from reflecting back into outer space and thus helps keep the earth warm enough to sustain humans and other living creatures.
25
New cards
1992
In ___, the U.S., along with 191 other countries, **signed the United Nations Framework Convention on Climate Change (UNFCCC).**
26
New cards
U.S Environmental Protection Agency (EPA)
In keeping with the UNFCCC, the ____________ **publishes an annual report on human-generated greenhouse gas emissions and sinks.**
27
New cards
International Panel on Climate Change (IPCC)
made several projections of temperature trends in the 21st century
28
New cards
temperature of 6 degrees Celsius
would likely spell disaster in the form of warming oceans, rising sea levels, widespread droughts, crop failures, wildfires, violent storms, rapidly melting glaciers, and tens of millions of climate change refugees
29
New cards
* Energy supply and use * Transportation * Agriculture and forests * Water * Climate refugees
**Climate change could threaten America’s national security in several ways**, resulting in potential hazards to human life and health:
30
New cards
United Nations Framework Convention on Climate Change
the **international community first officially recognized climate change** in the ____________________________
31
New cards
Rio de Janeiro; 1992
UNFCCC is an environmental treaty signed in ___________________ in _____ that stated a concern that ***“human activities have been substantially increasing the atmospheric concentrations of greenhouse gases, that these increases enhance the natural greenhouse effect, and that this will result on average in an additional warming of the Earth’s surface and atmosphere and may adversely affect natural ecosystems and humankind.”***
32
New cards
Kyoto Protocol of 1997; 2005
The Rio treaty led to the ____________, which took effect in ____
33
New cards
5\.2 percent; 2008-2012
Kyoto Protocol **required 37 industrialized nations** to **reduce their emissions of greenhouse gases by** ______ below 1990 levels in the period ________
34
New cards
December 11,1997
Kyoto Protocol **was adopted on** ___________
35
New cards
February 16, 2005
Owing to a complex ratification process, Kyoto Protocol **entered into force on** ____________
36
New cards
192
Currently, there are ___ parties to the Kyoto Protocol
37
New cards
Kyoto Protocol
operationalizes the United Nations Framework Convention on Climate Change by **committing industrialized countries and economies in transition to limit and reduce greenhouse gases (GHG) emissions in accordance with agreed individual targets**
38
New cards
December 8, 2012
the **Doha Amendment** to the Kyoto Protocol was **adopted for a second commitment period on** ________, starting in ***2013 and lasting until 2020***.
39
New cards
144
the Doha Amendment has **not yet enerred into force**; a **total of ____ instruments of acceptance are required for entry into force of the amendment.**
40
New cards
December 21, 2012
On _____________, the **amendment was circulated by the Secretary-General of the United Nations**, acting in his capacity as Depository, to all Parties to the Kyoto Protocol in accordance with Articles 20 and 21 of the Protocol.
41
New cards
18 percent
During the **second commitment period,** Parties committed to reduce GHG emissions by at least _________ below 1990 levels in the eight-year **period from 2013 to 2020;** however, the composition of Parties in the second commitment period is different from the first
42
New cards
\- International Emissions Trading
\- Clean Development Mechanism (CDM)
\- Joint implementation (JI)
three market-based mechanisms
43
New cards
comprehensive plan
**sets the legal foundation for zoning and subdivision regulations** that greatly influence the location, density, and type of new development and redevelopment.
44
New cards
comprehensive plan
also **provides guidance for public spending** in the capital improvements program.
45
New cards
air quality
The inventory of greenhouse gases fits well with the assessment of ___________ in the natural resources inventory
46
New cards
transportation-related goals
The _____________ of the climate action plan can **enhance the transportation section of the comprehensive plan**.
47
New cards
Waste management; retrofitting of public buildings
____________ and the ___________________ to r**educe greenhouse gases are important to include in the community facilities section.**
48
New cards
land-use goals
The _____________ of the climate action plan are **helpful in creating the land use section of the comprehensive plan** and for drafting the future land-use map, which is the basis of the community’s zoning map of the location of different land uses and densities
49
New cards
Zoning
**can influence settlement patterns** and the design of communities, the size and type of housing, and transportation choices that produce lower greenhouse gas emissions.
50
New cards
Zoning ordinances
can help **shape and locate redevelopment and new residential and commercial projects** to promote more compact development that saves on energy
51
New cards
Zoning
can also **help maintain urban downtowns and village main street**s where a variety of land uses and transportation choices already exist
52
New cards
Subdivision and land-development regulations
spell out what infrastructure a developer must provide along with standards for that infrastructure