This document discusses the history of energy use and the need for conservation and renewable resources. It notes that early humans relied on the sun, their own bodies, and animals for energy but the Industrial Revolution introduced widespread fossil fuel use. Fossil fuels are nonrenewable and their reserves took millions of years to form. As energy demand is projected to double, it is important to conserve energy and explore renewable alternatives like solar, wind, geothermal, and biomass to transition away from fossil fuel dependence for a sustainable future.
The first in a series of fall term 2014 presentations by the students of FYS 158 (First Year Seminar: Archaeology of Sustainability) on the topic of sustainability.
The first in a series of fall term 2014 presentations by the students of FYS 158 (First Year Seminar: Archaeology of Sustainability) on the topic of sustainability.
In this slide contain RENEWABLEANDNON RENEWABLE RESOURCES, about introduction, energy resources, advantage and disadvantage and steps taken to preserve a natural sources.
The first in a series of fall term 2014 presentations by the students of FYS 158 (First Year Seminar: Archaeology of Sustainability) on the topic of sustainability.
The first in a series of fall term 2014 presentations by the students of FYS 158 (First Year Seminar: Archaeology of Sustainability) on the topic of sustainability.
In this slide contain RENEWABLEANDNON RENEWABLE RESOURCES, about introduction, energy resources, advantage and disadvantage and steps taken to preserve a natural sources.
Here is a brief description of solar energy, its utility, followed by its advantages, demerits and latest advancements in the utilization of solar energy. If exploited well the globe will glow with the solar energy in the coming years ahead.
Two Types of Natural Resources
Advantage and Disadvantage of some energy resources
Ways People Destroy Natural Resources
*Pictures are not mine.
@KidsEduc – Kids Educational Games
This is the PowerPoint presentation I used to teach elementary and junior high students about renewable energy. I recommend at least 90 minutes for the presentation, in order to get the most participation and discussion out of the classroom.
This ppt consist of Present Energy scenario in India ,and the future plans in terms of energy. a little introduction of DSSC is also summarized in this ppt.
Unit 3 VCE Environmental Science: Area of Study 1 - Energy and Greenhouse gases. This presentation has some typical exam a review of some typical exam questions for this unit of work as well as a comparison of the Mortlake Gas fired power plant and the Macarthur wind farm.
Here is a brief description of solar energy, its utility, followed by its advantages, demerits and latest advancements in the utilization of solar energy. If exploited well the globe will glow with the solar energy in the coming years ahead.
Two Types of Natural Resources
Advantage and Disadvantage of some energy resources
Ways People Destroy Natural Resources
*Pictures are not mine.
@KidsEduc – Kids Educational Games
This is the PowerPoint presentation I used to teach elementary and junior high students about renewable energy. I recommend at least 90 minutes for the presentation, in order to get the most participation and discussion out of the classroom.
This ppt consist of Present Energy scenario in India ,and the future plans in terms of energy. a little introduction of DSSC is also summarized in this ppt.
Unit 3 VCE Environmental Science: Area of Study 1 - Energy and Greenhouse gases. This presentation has some typical exam a review of some typical exam questions for this unit of work as well as a comparison of the Mortlake Gas fired power plant and the Macarthur wind farm.
Renewable energy and resources (MVGR).pptxAKHIL Battula
This presentation depicts, how renewable resources have an adverse effect on the environment. It begin with naming renewable energy resources and detail knowledge on their working. There after, slides explicit the side effects in production of renewable energy. To conclude, either the energy is source is renewable or non-renewable it always have an adverse effect on nature. So we need to develop our renewable energy resources more and more if we want to enjoy a peaceful and satisfactory life in today's energy hungry world.
Nuclear energy has long been hailed as a promising solution to our energy needs, offering a relatively clean and efficient source of power. However, alongside its benefits come significant risks and hazards that cannot be ignored. From the potential for catastrophic accidents to the long-term environmental and health impacts of radioactive materials, nuclear hazards pose complex challenges that demand careful consideration. In this comprehensive exploration, we delve into the various aspects of nuclear hazards, from their origins and mechanisms to their effects and the strategies employed to mitigate them.
Understanding Nuclear Hazards:1.1. Nuclear Energy and Its Hazards:
- Nuclear energy harnesses the power of atomic reactions to generate electricity, primarily through nuclear fission.
- The hazards associated with nuclear energy arise from the radioactive materials produced during fission, which emit harmful ionizing radiation.
- Types of nuclear hazards include accidents, radiation exposure, radioactive contamination, and the long-term storage of radioactive waste.1.2. Sources of Nuclear Hazards:
- Nuclear power plants: Accidents such as Chernobyl and Fukushima have demonstrated the potential for catastrophic failures in nuclear reactors.
- Nuclear weapons testing: The detonation of nuclear weapons releases large amounts of radioactive fallout into the environment.
- Radioactive waste: The disposal and storage of spent nuclear fuel and other radioactive materials present ongoing hazards.
Impacts of Nuclear Hazards:2.1. Health Effects:
- Acute effects of radiation exposure include radiation sickness, burns, and organ damage.
- Chronic exposure to low levels of radiation increases the risk of cancer, genetic mutations, and other long-term health problems.
- Vulnerable populations, such as children and pregnant women, are particularly susceptible to the harmful effects of radiation.2.2. Environmental Consequences:
- Radioactive contamination can persist in the environment for thousands of years, affecting ecosystems and wildlife.
- Contaminated water sources, soil, and air can lead to bioaccumulation of radioactive isotopes in plants and animals, potentially entering the food chain.
2. • “We do not inherit the
earth from our
parents, we borrow it
from our children” –
Chief Seattle
3. • Energy use has
changed a great deal
since people relied
solely on the sun,
their own strong
bodies or beasts of
burden as energy
resources.
4. • Long ago, people
learned how to use
water power to turn
paddle wheels and
wind power for
transportation and
irrigation.
5. • People learned to use
the chemical energy
stored in materials
like wood to cook and
heat their homes.
6. • But machines and
technologies introduced
during the Industrial
Revolution of the late
18th century required
the use of other energy
resources, especially
fossil fuels.
7. • Fossil fuels like coal,
oil and natural gas
are considered to be
nonrenewable energy
resources.
8. • Our fossil fuel reserves
formed over millions of
years from decaying
plants and animals.
• As we use them up,
they will not be
replenished in our
lifetimes.
9. • With the modern world
depending upon coal, oil
and gas for a majority of
its energy needs and the
prediction that the world
will nearly double its need
for energy resources in
several decades, it is
important to conserve
energy and to investigate
alternate energy
resources
10. • There are many
renewable energy
sources that are
alternatives to fossil fuels,
but some are not without
controversy.
• For instance, nuclear
power is used to generate
about 25 percent of the
world’s electricity, but it
has inherent risks,
especially in the disposal
of radioactive waste.
11. • Hydroelectric plants use running water to generate
electricity, however they may flood nearby lands and can
disrupt the normal flow of water, both of which negatively
affect the environment.
12. • Wind power is
increasingly being
used as a clean
source of renewable
energy.
• Turbines harvest wind
on wind farms and
generate electricity.
13. • Solar power is a promising, renewable energy
resource than can be turned into electricity, and
it is used in many toys and even home heating.
14. • Many other alternative
energy sources like
geothermal power, which
draws upon the earth’s
natural heat, and
biomass, which produces
an alternative to gasoline,
are being considered in
the movement away from
fossil fuel dependence.
15. • In our everyday lives, we can also work to conserve energy.
– Insulating, turning off lights and only using appliances like dishwashers
when they are full are just some of the ways people can limit energy use
in their homes.
– Also, carpooling, bicycling, and taking public transportation are effective
energy-saving ideas.
16. • The earth’s
inhabitants must take
a serious look at
energy resources,
use and conservation.