according to statistics, is shows that the earth was hotter before than currently hence the issue of global warming being debatable
Yes but this depends on the time scale. Glacial/interglacial cycles observed during the Quaternary period is definitely climate change.
Plants are the best bioindicators ( on account of discernible shift in crop phenoligy) to reveal whether or not, climate is changing...
You might also want to refer to the Intergovernmental Panel on Climate Change as the UN body for assessing the science related to climate change. (http://www.ipcc.ch/)
Kenneth
For ENSOs my point about hot seawater in the oceans is the same. Seawater on the surface near the source of geothermal heat. Whether from submarine volcanism or sub-aerial lava flows into the sea.
The answer is yes.
There is lots of evidence that tell us that the average temperature of the world's atmosphere and ocean have increased over the past 150 years. The evidence includes:
- A reduction in the extent of snow cover in the Northern Hemisphere
- Changes in the dates when lakes and rivers freeze and their ice melts
- Retreating of glaciers
- Changes in heat stored in ocean
- Extended growing season of plants
- Changes in rainfall patterns resulting in more floods, droughts and intense rain
Please also have a look at these useful RG links.
Article Some evidence of climate change in twentieth-century India
Article Global climate change and melting of Himalayan glaciers
Article Regional evidence of climate change in Nigeria
It is well established that variation in climatic factors result from climate change. Plants seem to react more rapidly and strongly to climatic variation than animals and therefore are good indicators of climate change. In the tropical region where I work, we see some changes in vegetation, suggesting that, yes climate is really changing.
There is no consensus in the scientific community, the climate will change that is certain independent of human activity, which creates a certain difficulty because it involves different temporal scales, its quantification involves many physical and biological factors ... my answer I'm not sure of anthropogenic influence as main factor ...
You only have to see how decreases the ice in the mountains.
Climate is changing with a noticeable evidence. We are living in a world that when the summer and winter will start or end are unknown to no one.
K. Karthik
Depends on the definition of climatic change adopted e.g. IPCC and the time scale e.g. 30 years for WMO. My personal presence is at least 60 years in order to take into account 60-year cycles.
Basic elements of change are temperature and rainfall while sea-level change is longer term.
The problem with climate change in the shorter time scale is that it is regional rather than global e.g. monsoon variability, ENSO, PDO, NAO, etc.
What cause extreme weather events also comes to mind.
Geologically climate has always changed.
Kenneth
You asked earlier how the high pressure ridge can be explained by the Nishino-shima subaerial and submarine eruption. The simplified answer is that hot seawater on the surface - the North Pacific Blob (caused by volcanism) was likely to have been responsible for the subsiding air to generate the ridge. In other words it is a case of regionally triggered hydrosphere changes to cause regional atmosphere changes.
Kenneth
Abnormally hot seawater (the north Pacific Blob) appearing in the northern hemisphere portion of the world's biggest ocean (the Pacific) during the 2013, 2014 and 2015 winters cannot be easily explained any other way.
We need to improve our monitoring of submarine eruptions.
Climate changed 3 times in the previous century. Nobody seemed to notice
We live with a chaotic atmospheric and oceanic climate and with chaotic solar forcing. Try to forecast a season ahead (apart from the Southern Oscillation) and you should be surprised.
Article Global Warming Mitigation Through Carbon Sequestrations in t...
Dear Friends and Colleagues of RG
Apparently, the greenhouse effect is an irreversible process. the only thing that can be done is to slow down this process and thus adverse weather anomalies, unusual atmospheric phenomena, disasters caused by climate change. The development of industry based on traditional energy sources, ie burning of minerals, still dominates in many regions of the world. In domestic terms, the management of economies often boils down to economic growth, development of the industry without taking into account environmental protection issues and analysis of greenhouse gas emissions. In national economic policies, the tendency of the race is dominating for a higher number of economic growth, and the negative effects of this growth are forgotten. An attitude is assumed that the next generations are worried about how to solve this problem. Such an approach will accelerate only the negative effects of the global greenhouse effect and the emergence of disasters and natural disasters about the sources of climate change in a larger part of the world.
More and more research centers operating in different countries and investigating climate change state that the progressing greenhouse effect on Earth is already a fact. As a result, the risk of increasingly frequent and increasingly dramatic climate disasters is increasing. Man has less and less time to counteract these negative processes.
It is necessary to change the development strategy based on intensifying the exploitation of the Earth's resources on the sustainable development strategy. It is necessary to develop new energy technologies based on renewable energy sources to slow down the progressing greenhouse effect of the Earth in order to reduce the risk of dramatic natural cataclysms. It is necessary to develop ecological innovations, while it may not be too late. It is necessary to save the Earth through destruction for future generations.
At the end of 2018 numerous weather anomalies such as snowfall in Spain, floods in Italy, almost summer temperature in some places in Central and Eastern Europe are recorded in Europe. From year to year, more and more warm winters are recorded in many places around the globe. In addition, for several years, higher and higher annual average temperatures have been recorded. More and more areas in Africa are covered by droughts, lack of rainfall and higher heat temperatures. In some coastal locations, off the coast of the oceans, in America, in Southeast Asia, in Polynesia tornadoes appear more and more dramatic. However, in Alaska, Canada, Norway and other countries where there are glaciers in the mountains, there are fewer and fewer glaciers. In the 20th century, a significant part of these glaciers melted. does it mean that the greenhouse effect on Earth is progressing so fast and is it already an irreversible process?
It probably already works globally, the greenhouse effect and weather anomalies in many places in the world are a derivative of this progressive global warming, ie the recorded rise in the average temperature on Earth.
In some places on Earth from year to year, the average temperature is gradually rising, but there are places on the Earth where there was no real winter before, there was no frost and snow, and in recent years such a winter begins to appear. Cold weather recorded in some geographic places on Earth may also be a result of a globally increasing global warming. This is one of the elements of more and more emerging weather anomalies.
Are current weather anomalies in Europe derived from the progressive greenhouse effect on Earth?
Do current weather anomalies occurring in many places on Earth are a derivative of the globally progressing greenhouse effect?
Please reply. I invite you to the discussion
The warming climate of the Earth causes a multitude of secondary effects, usually adverse weather anomalies and climatic disasters.
As a result of these weather anomalies and climatic cataclysms, the area of the undesignated natural environment and areas developed by man for the needs of the development of civilization, including arable land areas in the field of crop production, may gradually diminish.
Every year, more and more cases of weather anomalies and climatic cataclysms are coming, which may confirm such a research thesis.
At the end of 2018, the UN climate summit in Katowice took place. COP (Conference of the Parties) on climate policy on Earth. UN climate summits, i.e. COP (Conference of the Parties) are global conferences during which climate policy actions are negotiated. Poland twice hosted them - in 2008 in Poznań and in 2013 in Warsaw. In December 2018, the climate summit is held for the first time now in Katowice in Poland.
During this summit, conferences are held, discussions are held on the need to develop a sustainable development policy and the need for development of ecological, renewable energy sources in order to generate a reduction in greenhouse gas emissions in the future and ultimately reduce the average annual temperature rise on the Earth's surface. From the discussions it follows that it is necessary to develop eco-innovations, new pro-ecological energy sources, development of electromobility of transport means. It is necessary to develop and implement on a large scale renewable energy sources. In addition, it is important to increase the scale of afforestation, as forests and the flora contained in them absorb a large proportion of greenhouse gas emissions.
As part of this year's UN Climate Summit, the 24th Conference of the Parties to the United Nations Framework Convention on Climate Change (COP24), 14th Meeting of the Parties to the Kyoto Protocol (CMP 14) and the Conference of the Paris Agreement signatories (CMA 1) are held. About 20,000 people from 190 countries participate in the event, including politicians, representatives of non-governmental organizations, and scientific and business spheres.
Perhaps during this UN climate summit important and specific agreements, declarations and signed agreements on the reduction of greenhouse gas emissions will be taken. The present lectures show that in recent years the warming process of the Earth's climate has accelerated significantly and therefore, in the black scenario of future climate changes, the temperature on the Earth's surface can rise by 4 ° C to the end of the 21st century. If this happened, then the scale of climate-related cataclysms that are dangerous to humans, including droughts, floods, fires and weather anomalies in many places around the world, will increase many times. The problem is very serious globally and therefore a lot depends on whether international cooperation will develop in order to limit these problems and their negative effects.
In view of the above, I would like to ask you: Should you think that international cooperation should increase to reduce greenhouse gas emissions on Earth? In addition, another key question arises: how much of this international cooperation is possible, to what extent will real and effective measures be undertaken on the basis of the discussions and declarations undertaken to reduce greenhouse gases?
Please reply.
I invite you to the discussion
Probably the future of humanity depends on the next decade. If, over the next few years, renewable energy sources replacing traditional energy based on the burning of minerals are developed on a massive scale, it might be possible for humankind to avoid a climatic catastrophe in the 21st century. The international climate agreement that currently (December 2018) concluded in Katowice in Poland may be a late and insufficient agreement, because most countries do not intend to develop high-budget projects for the construction and development of power plants based on renewable energy sources. In addition, changes in the automotive industry, changes leading to the development of motorization in the direction of electromobility are too slow. The problem is serious because it concerns the future of all humanity in the perspective of the next two to three generations, yet the necessary changes and reforms in the implementation of economic principles of sustainable pro-ecological development are too slow. With the current pace of changes, there may be a shortage of time to implement the necessary pro-ecological undertakings, and then the problem of global warming will become an irreversible process and will constantly accelerate!
Unfortunately, more and more data and research centers scientifically confirms that progressively progressing global warming has become a fact. First and foremost, human activity influences this. The impact of natural factors is significant, however, the progress of civilization, industrial development, greenhouse gas emissions in the past few decades has increased significantly and continues to grow. The biggest problem may be the inability to reverse this process even if all of the industry, energy and transport are now switching to renewable energy sources.
In view of the above, the current question is: Is it possible that man with the help of modern RES energy technology would stop the greenhouse effect on Earth?
Please reply
I invite you to the discussion
Thank you very much
Best wishes
Dear Friends and Colleagues of RG
In the context of the progressive warming of the Earth's climate, the following question is of particular importance:
How will human civilization change in a few decades due to the ongoing global warming process?
How will the technique of building infrastructure of cities and metropolises change due to the ongoing global warming process?
Does the development of smart city technology and ecological innovations, renewable energy sources, etc., ie the dissemination of sustainable pro-ecological development of cities and metropolises, facilitate the process of settling new environments in connection with the ongoing global warming process?
What kind of new environments did the people experience when fleeing from the drained continents? Probably if the end of the twenty-first century due to the progressive procesm global warming average temperature of the Earth's surface to increase by 3-4 degrees Celsius to most areas in tropical, subtropical and temperate some of the areas will not be suitable for survival. People will have to emigrate to the arctic regions.
In addition, technologies for colonizing new environments should be developed. Perhaps in a few decades new cities will be built underground, at the bottom of the seas and oceans, in Earth's orbit and possibly also on the Moon and on Mars if humanity in the next several decades will properly modernize the space travel technique and colonize the possible planets in our System sunlight.
Do you agree with my opinion on this matter?
In view of the above, I am asking you the following question:
How will human civilization change in a few decades due to the ongoing global warming process?
Please reply
I invite you to the discussion
Best wishes
Of course yes! Please see the following references.
Article Local perceptions of climate change validated by scientific ...
Article Evidences of Climate Change in Nepal
Article Biological indicators of climate change: Evidence from long-...
Article Monitoring climate change with lichens as bioindicators
Chapter Alpine Bryophytes as Indicators for Climate Change: a Case S...
Yes, the climate is changing. My response is based on the statistics available regarding temperature rise and rainfall variability for the last 30 years also. Check IPCC reports.....
Yeah..Its changing...no doubt in it...and perhaps deteriorating...we're observing it in our lifetime also. Respective researchers will have evidence-based scientific data.
YES ...
Article Global Warming Mitigation Through Carbon Sequestrations in t...
The anthropogenic activities such as power generation (burning of fossil fuels), agriculture (livestock, farming, rice cultivation and burning of crop residues), polluting water bodies, and industry and urban activities (transport, mismanagement of solid, liquid waste, etc.) have risen substantially CO2 concentrations to 72% among GHGs. Emissions and sequestration of carbon need to be in balance to sustain ecosystem functions and maintain the environmental conditions. Forests are the major carbon sinks to mitigate global warming.