What Isnt A Renewable Energy Source
Fossil fuels are not a renewable source of energy because they are not infinite. Plus, they release carbon dioxide into our atmosphere which contributes to climate change and global warming.
Burning wood instead of coal is slightly better but its complex. On the one hand, wood is a renewable resource provided it comes from sustainably managed forests. Wood pellets and compressed briquettes are made from by-products of the wood processing industry and so arguably its recycling waste.
Compressed biomass fuels produce more energy than logs too. On the other hand, burning wood releases particles into our atmosphere.;
What Are The Five Megatrends For Our Future
In the 21st century, there are a number of identifiable megatrends influencing the present and the likely future.
Undoubtedly, there are areas of overlap between these megatrends, but here are the five megatrends that are the most relevant to investing opportunities right now and likely to be so for decades to come:
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Everything Has Two Sides
Renewable energy sources can be useful and cause damage at the same time. One must always look at the whole picture. The use of alternative energy resources has to be evaluated by its eco-balance.
For example, heavy metals are used for the production of solar power cells which remain in the factory, though the finished solar module isn’t toxic at all. In response to this, scientists are researching and developing more sustainable methods of making solar cells, such as recyclable cells made out of trees.
Windparks are not without their controversies due to the irritation they can cause to birds and bats. Offshore windparks could be a problem for migratory birds.
Diverse hydroelectric power plants can also cause changes in existing ecosystems. Burning biomass can produce nitrogen monoxide, sulphur dioxide and respirable dust.
Using geothermal energy fluids drawn from the deep earth carry a toxic and explosive mixture of gases, notably carbon dioxide, hydrogen sulfide, methane and ammonia. Plant construction can adversely affect land stability.
Economic And Environmental Aspects
When first invented, the Haber process competed against another industrial process, the cyanamide process. However, the cyanamide process consumed large amounts of electrical power and was more labor-intensive than the Haber process.:137143
As of 2018, the Haber process produces 230 million tonnes of anhydrous ammonia per year. The ammonia is used mainly as a nitrogen fertilizer as ammonia itself, in the form of ammonium nitrate, and as urea. The Haber process consumes 35% of the world’s natural-gas production . In combination with advances in breeding, herbicides and pesticides, these fertilizers have helped to increase the productivity of agricultural land:
With average crop yields remaining at the 1900 level the crop harvest in the year 2000 would have required nearly four times more land and the cultivated area would have claimed nearly half of all ice-free continents, rather than under 15% of the total land area that is required today.
The energy-intensivity of the process contributes to climate change and other environmental problems:
leaching of nitrates into ground water, rivers, ponds and lakes; expanding dead zones in coastal ocean waters, resulting from recurrent eutrophication; atmospheric deposition of nitrates and ammonia affecting natural ecosystems; higher emissions of nitrous oxide , now the third most important greenhouse gas following CO2 and CH4.
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Reaction Rate And Equilibrium
Two opposing considerations are relevant to this synthesis: the position of the equilibrium and the rate of reaction. At room temperature, the equilibrium is strongly in favor of ammonia, but the reaction doesn’t proceed at a detectable rate due to its high activation energy. Because the reaction is exothermic, the equilibrium constant becomes 1 around 150200;°C .
|600||2.25 × 106|
Above this temperature, the equilibrium quickly becomes quite unfavorable for the reaction product at atmospheric pressure, according to the van ‘t Hoff equation. Lowering the temperature is also unhelpful because the catalyst requires a temperature of at least 400;°C to be efficient.
Increased pressure does favor the forward reaction because there are 4;moles of reactant for every 2;moles of product, and the pressure used ) alters the equilibrium concentrations to give a substantial ammonia yield. The reason for this is evident in the equilibrium relationship, which is
is the mole fraction of the same species, P is the pressure in the reactor, and P } is standard pressure, typically 1 bar .
Renewable Energy Has Numerous Health And Environmental Benefits
Renewable energy generation sources emit little to no greenhouse gases or pollutants into the air. This means a smaller carbon footprint and an overall positive impact on the natural environment. During the combustion process, fossil fuels emit high amounts of greenhouse gases, which have been proven to exacerbate the rise of global temperatures and frequency of extreme weather events.
The use of fossil fuels not only emits greenhouse gases but other harmful pollutants as well that lead to respiratory and cardiac health issues. With renewable energy, youre helping decrease the prevalence of these pollutants and contributing to an overall healthier atmosphere.
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Catalysts Other Than Iron
Since the industrial launch of the HaberBosch process, many efforts have been made to improve it. Many metals were intensively tested in the search for suitable catalysts: The requirement for suitability is the dissociative adsorption of nitrogen . At the same time, the binding of the nitrogen atoms must not be too strong, otherwise, the catalyst would be blocked and the catalytic ability would be reduced . The elements in the periodic table at the left of the iron group show such a strong bond to nitrogen. The formation of surface nitrides makes for example chromium catalysts ineffective. Metals to the right of the iron group, in contrast, adsorb nitrogen too weakly to be able to activate it sufficiently for ammonia synthesis. Haber initially used catalysts based on osmium and uranium. Uranium reacts to its nitride during catalysis and osmium oxide is rare.
Due to the comparatively low price, high availability, easy processing, lifespan, and activity, iron was ultimately chosen as a catalyst. The production of 1800 tons ammonia per day requires a gas pressure of at least 130 bar, temperatures of 400 to 500;°C, and a reactor volume of at least 100 m³. According to theoretical and practical studies, further improvements of the pure iron catalyst are limited. In 1984 it was noticed that the activity of iron catalysts were increased by inclusion of cobalt.
Demographic And Social Change
There are several factors currently driving the megatrend of demographic and social change:
A longer life-expectancy leading to an aging population in many advanced economies and China. In Western Europe, one in five people are over 65 years old. In Japan, this increases to approximately a third of its population. An aging population has ramifications for healthcare, employment and pension provision.
There is a rapidly growing population in developing countries. Due to the lack of a matching number of employment opportunities in these countries, this growing population may be forced to emigrate to seek work. Currently, the African continent is seeing the biggest growth in population.
Technological developments have automated many processes and altered the way people work. For instance, many car production lines have seen people replaced by machinery. Cloud computing and video conferencing have made it easier to work remotely or from home. Developing technology has created new employment opportunities but with a need for a completely fresh skill set.
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Know The Warning Signs
Getting to know the warning signs of a bad investment is a skill that comes with experience, but there are some you should be aware of from the outset:
- Guaranteed high returns that seem too good to be true
- A financial advisor who fails to achieve your targeted return so moves the goalposts instead
- Withdrawals that take too long to be processed
- No active market for your investments when you want to sell, meaning that no one wants to buy them from you
- The value of dividends drop meaning that the company is struggling financially, which may result in the price of their shares dropping too
- A procession of management departures from the company may indicate problems
- A too low price-to-earnings ratio
Also keep in mind that, while it is less likely with megatrends, trends can reverse.
Spain Is Home To More Than 75% Of The Global Csp Capacity
Asia accounted for approximately 70% of the total 94GW of global solar power expansion in 2018, while the US, Australia and Germany added 8.4GW, 3.8GW, and 3.6GW in new solar power projects during the year.
The 1.17GW Noor Abu Dhabi solar project in the United Arab Emirates is currently the biggest single-site solar power plant in the world.
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What Is The United States Doing To Address Climate Change
The United States has taken steps to address climate change by increasing the nations use of renewable energy and curbing greenhouse gas emissions through energy efficiency initiatives and carbon pollution standards.
The 116th Congress focused Capitol Hills attention on climate change. The leaders of the House of Representatives created the House Select Committee on the Climate Crisis to recommend climate policies, and House and Senate Standing Committees held at least 134 hearings related to climate change and the environment in 2019 and at least 79 hearings in 2020. However, the legislative branch has yet to pass significant legislation that will reduce greenhouse gas emissions and enhance resilience to climate impacts.
Many states, including the 24 states that are members of the U.S. Climate Alliance, are moving forward with policies to curb carbon emissions and favor renewable energy and energy efficiency. As of July 2019, 23 states and the District of Columbia have set their own greenhouse gas reduction targets.
What Is Climate Change Adaptation
Climate adaptation means adjusting to the current and expected impacts of climate change. It can apply to habitats, but also to societies and economies. Adaptation usually involves preparing for harmful effects , but it can also prepare communities to benefit from climate change opportunities. Examples of climate adaptations include changing crop planting and harvesting patterns to align with a new climatic zone, moving homes away from a coastline or putting those homes on stilts, and planting trees in cities to decrease intense heat made worse by the urban heat island effect. Nature-based solutions are an important form of climate adaptation. Examples of nature-based solutions include the tree example above, green roofs which absorb storm water and reduce temperatures, and living shorelines that can absorb storm surge during extreme weather events.
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What Does Climate Change Have To Do With Health
Rising global temperatures exacerbate heat-related diseases, such as heat exhaustion and heatstroke, as well as cardiovascular, respiratory, and kidney diseases. Extreme heat kills about 618 people in the United State every year. Since 1990, more people have died of extreme heat in the United States than from cold snaps, floods, hurricanes, or tornadoes.
Climate change also impacts food-borne diseases because higher temperatures can increase the abundance and range of many pathogens, as well as their growth rates and survivability.
Water availability and water-borne illnesses are also impacted by climate change. Regions that depend on snow melt for drinking water may have less available water, since less snow is accumulating during the winter. Increased flooding caused by extreme weather events can intensify water-borne diseases by providing standing water that acts as a breeding ground for insects. Flooding can also lead to more contaminated water that is unsafe to drink or bathe in. Warmer temperatures have caused increased toxic algae blooms in lakes in some parts of the country.
Maintenance Requirements Are Lower
In most cases, renewable energy technologies require less overall maintenance than generators that use traditional fuel sources. This is because generating technology like solar panels and wind turbines either have few or no moving parts and dont rely on flammable, combustible fuel sources to operate. Fewer maintenance requirements translate to more time and money saved.
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What Did People In Both The North And South Have In Common During The Late 1800s
What did people in both the north and south have in common during the late 1800s?
What did people in both the North and the South have in common during the late 1800s 5 points Select one a people increased their use of both renewable and non-renewable natural resources B factories railroads and industry were more important to the economy?;People in both the North and the South increased their use of both renewable and non-renewable natural resources during the late 1800s. Option A is correct.
How were the economies of the North and South similar?;The economies of both sides relied heavily on farming, and both used similar methods to work the land. In the North, states raised wheat and corn primarily while the South rested its economic hopes almost solely cotton and rice.
What feature did the North and South have in common Brainly?;They were both dominated by men. Explanation: While South revolved around agriculture, North revolved more around industrial gods. South had more slaves and based its production on slaves.
What Are Corporations Doing To Combat Climate Change
Investors and companies across the globe are embracing the shift from fossil fuels to cleaner energy. Many large corporations have all stepped up to show their public support for U.S. carbon cutting efforts and have invested in projects combating climate change. More than 1,000 companies have signed a letter that endorses the Paris Agreement on climate change.
In 2016, nearly 400 institutional investors, which collectively managed over $24 trillion in assets, also wrote in support of the Paris Agreement, encouraging governments to expand low-carbon fuel sources, establish carbon prices, and eliminate fossil fuel subsidies. By 2019, this group grew to 631 institutional investors managing more than $37 trillion in assets. Moody’s, whose ratings play an essential role in financial markets, now includes climate risk in its corporate ratings.
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Renewable Energy Wont Run Out
Renewable energy technologies use resources straight from the environment to generate power. These energy sources include sunshine, wind, tides, and biomass, to name some of the more popular options. Renewable resources wont run out, which cannot be said for many types of fossil fuels as we use fossil fuel resources, they will be increasingly difficult to obtain, likely driving up both the cost and environmental impact of extraction.
The Future Of Renewable Energy
As world population rises, so does the demand for energy in order to power our homes, businesses and communities.;Innovation and expansion of renewable sources of energy is key to maintaining a sustainable level of energy and protect our planet from climate change.
Renewable energy sources make up 26% of the worlds electricity today, but according to the International Energy Agency its share is expected to reach 30% by 2024.;This is a pivotal time for renewable energy, said the IEAs executive director, Fatih Birol.
In 2020, the UK hit a new amazing renewable energy milestone. On Wednesday 10th June, the country celebrated two months of running purely on renewable energy for the first time ever. This is a great step in the right direction for renewables.;
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What Is A Carbon Footprint And How Can I Reduce My Carbon Footprint
A carbon footprint is the amount of carbon emitted by the actions of a person, group, household, organization, or activity over a given time period, primarily due to the consumption of fossil fuels. The more fossil fuels are consumed during an activity, the larger the carbon footprint . Activities that are part of the natural carbon cycle, such as breathing, are not counted. A carbon footprint can also include emissions of other greenhouse gases, such as methane .
Reducing or offsetting greenhouse gas emissions by improving energy efficiency, using renewable energy, and adopting sustainable practices is the best way to reduce one’s carbon footprint. Simple things like taking public transportation, using light emitting diode light bulbs, and reducing food waste are just a few of the many ways you can reduce your carbon footprint and fight climate change. For more easy ways to reduce your carbon footprint, see EESI’s Get Involved page.
Renewable sources of energy come from natural resourceslike sunlight, plant matter , geothermal activity, water, and windthat are not depleted when used . In contrast, nonrenewable sources of energylike fossil fuelsare finite resources that cannot be easily replenished when consumed. Renewable energy is also a low- or zero-carbon source of energy.