Global Warming

One important effect of the rise in the level of greenhouse gases is global warming. Greenhouse gases trap heat in the Earth's atmosphere, causing the planet's average temperature to increase. This can lead to various consequences such as rising sea levels, more frequent and severe weather events, and disruptions to ecosystems.

Yes, trees and plants take in carbon dioxide (CO2, which is a huge greenhouse gas), store the carbon in their roots, trunks and branches and release the oxygen. If the trees are no longer present, then the CO2 will remain in the atmosphere, where it adds to the accelerated greenhouse effect. This is causing global warming.

Yes.

Global warming melts ice.

Its not the ice that already drifts on the seas that is a problem, it displaces the volume of its weight, so if it melts, water levels will not rise.

But the ice that covers land does not do this.

If it melts, it will increase ocean levels.

Without the greenhouse effect, Earth would be much colder, with temperatures plummeting to levels too extreme to support life as we know it. The greenhouse effect is crucial for trapping heat in the atmosphere and maintaining Earth's surface temperatures within a range that is hospitable for living organisms.

Carbon dioxide molecules are made up of three atoms (CO2), so they can absorb heat. It is thus called a greenhouse gas. Any gas with three or more atoms can capture heat.

Oxygen (O) and nitrogen (N) consist of a single atom each, so they don't capture heat.

Rising global temperatures have also been accompanied by other changes ... Are human activities or natural variations in climate responsible for the ... warming we have seen in the past 50 years cannot be explained by natural factors alone.

Scientists have proposed measures to prevent global warming such as transitioning to renewable energy sources, reducing carbon emissions from transportation and industry, implementing carbon capture and storage technologies, protecting and restoring forests and other carbon sinks, and promoting sustainable agricultural practices. These efforts aim to mitigate the impact of human activities on the climate and limit the rise in global temperatures.

1. Human activities such as burning fossil fuels and deforestation release excess carbon dioxide into the atmosphere.
2. Natural processes like volcanic eruptions and decomposition also contribute to the carbon cycle.
3. The ocean absorbs and releases carbon dioxide, influencing the balance of carbon in the atmosphere.
4. Land use changes, such as agriculture and urbanization, can impact the storage and release of carbon in vegetation and soil.

The term "ozone layer" was coined by two British atmospheric scientists, Richard Stolarski and Ralph Cicerone, in the early 1970s. They were studying the thin layer of ozone gas in the Earth's stratosphere and its role in protecting the planet from harmful ultraviolet radiation.

The planet has a number of huge carbon sinks, removing CO2 from the atmosphere. The largest is the ocean, as CO2 dissolves. This absorbs roughly 80% of all carbon dioxide.

Other sinks are photosynthesis by vegetation and phytoplankton, and the weathering of silicate rock. For more details, read about the carbon cycle.

Currently, sources of carbon must outweigh the sinks because atmospheric CO2 is increasing globally by roughly 2 parts per million by volume per year, as can be seen in the NOAA measurements of atmospheric CO2. CO2 is even higher in cities and industrial areas, in places where fossil fuels are being burnt in quantity.

The easiest way for us to reduce the carbon dioxide levels is to reduce carbon dioxide emissions. This is the scientific consensus view, and is the view held by the IPCC, all major scientific bodies and national academies of science around the world.

Ozone depletion and climate change are related but separate issues. Ozone depletion refers to the thinning of the ozone layer in the stratosphere, which can lead to increased harmful UV radiation reaching Earth. Climate change, on the other hand, is primarily driven by the increase in greenhouse gases in the atmosphere, leading to global warming and changes in weather patterns.

It is in the nature of scientists that they rarely agree on anything. Scientific reputations and careers are not made by agreeing with the general consensus but by disagreeing and by finding credible reasons for disagreeing.

However, a poll of scientists in different fields, conducted by Doran and Kendall Zimmerman in 2009, found that 97 per cent of those who published at least half of their peer-reviewed research in the climate field agreed that human activity was significant in changing global temperature. Anderegg et al., in 2010, similarly found that 97 per cent of actively publishing climate scientists went along with the international panels' consensus. Although each sample involved fewer than a hundred climate scientists, these are statistically significant sample sizes for the total population of climate scientists.

At the other extreme, Doran and Kendall Zimmerman found that only 47% of economic geologists (typically employed by oil companies and the like) concurred.

So, the scientists whom we would regard as the principal experts in the field of climate science are in strong agreement that global warming is a fact and that it is at least principally a result of human activity. Climate scientists agree strongly that global warming is the reason for rising sea levels but there is probably a greater diversity of views as to the effect of global warming on rainfall patterns and intense storm activity. Those scientists who work in other fields, typically where their employers have an interest in minimising the problem, are roughly divided on the issue of global warming.

Global revision is best suited for addressing overall organization and structure of a piece of writing. It involves reworking major aspects such as thesis clarity, paragraph transitions, and overall coherence to ensure that the content flows logically and effectively communicates the intended message.

Yes, ammonia (NH3) is considered a greenhouse gas. While it is less potent than gases like carbon dioxide or methane, it can still contribute to the greenhouse effect and global warming when present in the atmosphere.

Human industrial activity, cement manufacture, and transport, releasing carbon dioxide and other greenhouse gases into the atmosphere in large amounts.

Deforestation is also an important cause.

Burning fossil fuels releases carbon dioxide into the atmosphere, which increases the concentration of this greenhouse gas. This leads to an enhanced greenhouse effect, trapping heat in the atmosphere and contributing to global warming and climate change.

We affect the earth's regular carbon cycle by burning fossil fuels. Coal and oil combustion adds billions of tons of carbon to the atmosphere, carbon that has been stored underground for millions of years.

Biofuels are part of the natural carbon cycle, in which plants absorb carbon dioxide from the air and this becomes carbon which is eventually returned to the air when vegetation rots or is burnt, or when animals eat it and respire carbon dioxide back into the air. Thus, although burning of wood and biofuels does release carbon dioxide back into the air, this process does not add to the long term concentration of atmospheric carbon dioxide.

When we create carbon dioxide from carbon that has been sequestered underground, we add new carbon dioxide to the air, increasing its concentration and causing global warming.

The global level covers the largest area, encompassing the entire world. Regional levels cover a specific geographic region or area within a continent, while local levels are the smallest, focusing on cities, towns, or communities.

Australia is a relatively heavy producer of greenhouse gases for a number of reasons, all of which have to be addressed. Some important reasons are:

Australia is one of the world's major producers of bauxite, which it smelts into alumina for export. This process requires a large amount of electricity, which in turn produces carbon dioxide, a greenhouse gas.

Australia has among the largest herds of cattle and sheep in the world. Cattle and sheep contribute about 12 per cent of Australia's total greenhouse gas emissions, as methane from their digestive processes. Research is being conducted on the diets of cattle, to help understand changes that would reduce these emissions.

As the driest continent in the world, Australia can produce very little electricity from hydro-electric sources. However, progress is being made towards using wind and geothermal power sources.

Australia has not yet progressed as far as most European countries to placing a price on carbon emissions. Some progress has been made at the local level, by phasing out the sale of incandescent light bulb, encouraging home insulation and the installation of residential solar hot water systems and solar panels to generate electricity.

The theme is we ignore ominous threats to our environment, and pay for it when the climate tries to heal itself by cataclysmic storms that trigger a new ice age.

The movie was typical "Hollywood", with a hard lean to climate change theories.