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London, United Kingdom - Better land management and the consumption of healthier diets can help address climate change, says the first comprehensive study on the interactions linking land and climate systems.

Climate Change and Land, published on Thursday by the Intergovernmental Panel on Climate Change (IPCC) - the UN agency responsible for assessing climate change science - looks at the role land use can play in contributing to or mitigating global warming.

However, the agency points out that sustainable land use is only one aspect of a strategy that should aim to reduce greenhouse gas emissions from all sectors in order to meet the goals of the Paris Agreement. That deal, signed in 2015 by more than 200 countries, aimed to limit global warming to well below two degrees Celsius above pre-industrial levels while pursuing efforts to limit the rise to 1.5C.

"Land is undergoing human pressure, land is part of the solution, but land cannot do it all," Debra Roberts, one of the authors of the report and cochair of the working group assessing climate effect and adaptation told journalists at a news conference in Geneva.

While land use, including forestry and agriculture, accounts for at least 23 percent of human greenhouse gas emissions, land is also able to absorb nearly a third of emissions from fossil fuels and industry.

We have a lot of choice about the way we manage land in the future, the diet that we eat, and these choices can have large impacts
Joanna House, IPCC report author

"We need to look at how we can reduce emissions from land and how we can use it to cause carbon removal," Joanna House, one of the report's lead authors and a reader in environmental science and policy at the University of Bristol, told Al Jazeera.

"We have a lot of choice about the way we manage land in the future, the diet that we eat, and these choices can have large impacts," she added. "It's all about the choices people and governments make moving forward. What is clear is we need urgent action now across all sectors. Not just reducing emissions from land, but from energy, and to avoid the climate impact on land."

The report addresses land degradation, caused by unprecedented rates of land and freshwater use due to population growth as well as changes in the consumption of food, timber and energy.

"We humans affect more than 70 percent of ice-free land. A quarter of this land is degraded," said Valerie Masson-Delmotte, cochair of the IPCC's working group addressing the physical science basis on climate change.

"The way we produce food and what we eat contributes to the loss of nature and ecosystems and declining biodiversity. When land is degraded, it reduces the soil's ability to take up carbon, and this exacerbates climate change. In turn, climate change exacerbates land degradation."

More than 500 million people currently live in areas that already experience desertification or degradation, mostly in the world's poorest countries, which are also the most exposed to food insecurity.

"The countries that are most food insecure are the ones that have done the least to cause the climate problem, and part of that is a question about geography," Katherine Kramer, global climate lead at Christian Aid, which released a report on climate change and food security earlier this week, told Al Jazeera.

"Certain parts of the world are warming much more rapidly and are much more prone to have extreme weather events," she continued. "These tend to be in the poorest countries and of course the impact will be greater there because they have the least resilience to be able to cope."

The IPCC report stresses the importance of reducing food waste. Between 2010 and 2016, global food loss and waste contributed between eight and 10 percent of all greenhouse gas emissions produced by human activities. Between 25 and 30 percent of the food we produce is currently lost or wasted.

"Underlying this report is the fact that a relatively small number of giant meat, agribusiness and biofuel companies are responsible for the bulk of deforestation and other climate pollution in the agriculture sector," said Glenn Hurowitz, CEO of global campaign group Mighty Earth.

A shift towards low-carbon diets - eating less meat and more plant-based foods such as grains, vegetables and nuts - is also among the recommendations.

"Changing dietary practices [can help] free up land that we can then use for sustainable food production or carbon mitigation in other ways," House said.

"We shouldn't need to make a choice between feeding people and reducing carbon emissions," House said. "It's thinking about the way we use land and we govern things around that to give people access to the food they need."

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Land degradation accelerates global climate change

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London, United Kingdom - Better land management and the consumption of healthier diets can help address climate change, says the first comprehensive study on the interactions linking land and climate systems. Climate Change and Land, published on Thursday by the Intergovernmental Panel on Climate Change (IPCC) - the UN agency responsible for assessing climate change science - looks at the role land use can play in contributing to or mitigating global warming.

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I choose this video because it explain the climate change's all important causes and consequences. İt explain that why is climate change. İt warn against danger.

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I choose this video because ı am carefully about this topic. We should protect our world. We have to do this

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Kristie Ebi: How climate change could make our food less nutritious

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Rising carbon levels in the atmosphere can make plants grow faster, but there's another hidden consequence: they rob plants of the nutrients and vitamins we need to survive. In a talk about global food security, epidemiologist Kristie Ebi explores the potentially massive health consequences of this growing nutrition crisis -- and explores the steps we can take to ensure all people have access to safe, healthy food.

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I chose this video because its explains climate change using maps and confirm about this situation.Herewith,peope learn and understand this.They become conscious about climate change.

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Scientist Explains Climate Change Using Maps | WIRED

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4 min read

The Sun powers life on Earth; it helps keep the planet warm enough for us to survive. It also influences Earth's climate: We know subtle changes in Earth's orbit around the Sun are responsible for the comings and goings of the past ice ages. But the warming we've seen over the last few decades is too rapid to be linked to changes in Earth's orbit, and too large to be caused by solar activity. ¹

The Sun doesn't always shine at perpetually the same level of brightness; it brightens and dims slightly, taking 11 years to complete one solar cycle. During each cycle, the Sun undergoes various changes in its activity and appearance. Levels of solar radiation go up or down, as does the amount of material the Sun ejects into space and the size and number of sunspots and solar flares. These changes have a variety of effects in space, in Earth's atmosphere and on Earth's surface.

The current solar cycle (Solar Cycle 25) began in December 2019 and has quickly ramped up in activity. Although the Sun won't reach peak levels until 2025, it is already exceeding early predictions. NASA's upcoming Geospace Dynamics Constellation Mission, currently scheduled to launch in 2027, will provide valuable insights into Solar Cycle 26.

According to the United Nations' Intergovernmental Panel on Climate Change (IPCC), the current scientific consensus is that long and short-term variations in solar activity play only a very small role in Earth's climate. Warming from increased levels of human-produced greenhouse gases is actually many times stronger than any effects due to recent variations in solar activity.

For more than 40 years, satellites have observed the Sun's energy output, which has gone up or down by less than 0.1 percent during that period. Since 1750, the warming driven by greenhouse gases coming from the human burning of fossil fuels is over 270 times greater than the slight extra warming coming from the Sun itself over that same time interval. ²

As mentioned, the Sun is currently experiencing a low level of sunspot activity. Some scientists speculate that this may be the beginning of a periodic solar event called a "grand minimum," while others say there is insufficient evidence to support that position. During a grand minimum, solar magnetism diminishes, sunspots appear infrequently and less ultraviolet radiation reaches Earth. Grand minimums can last several decades to centuries. The largest recent event happened during the "Little Ice Age" (13 th to mid-19 th century): the "Maunder Minimum," an extended period of time between 1645 and 1715, when there were few sunspots.

Several studies in recent years have looked at the effects that another grand minimum might have on global surface temperatures. 3 These studies have suggested that while a grand minimum might cool the planet as much as 0.3 degrees C, this would, at best, slow down (but not reverse) human-caused global warming. There would be a small decline of energy reaching Earth, and just three years of current carbon dioxide concentration growth would make up for it. In addition, the grand minimum would be modest and temporary, with global temperatures quickly rebounding once the event concluded.

Some people have linked the Maunder Minimum's temporary cooling effect to decreased solar activity, but that change was more likely influenced by increased volcanic activity and ocean circulation shifts. 4

Moreover, even a prolonged "Grand Solar Minimum" or "Maunder Minimum" would only briefly and minimally offset human-caused warming.

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What Is the Sun's Role in Climate Change? - NASA Science

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The Sun powers life on Earth; it helps keep the planet warm enough for us to survive. It also influences Earth's climate: We know subtle changes in Earth's orbit around the Sun are responsible for the comings and goings of the past ice ages. But the warming we've seen over the last few decades is [...]

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Its abaout climate change
I choosed it because its very informative and very comprehensive. My opinion is
Climate change is a very important problem and people
dont do anythşng about it.

https://youtu.be/-D_Np-3dVBQ

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I chose this video because he discribed details of climate change clearly and he pointed out the real reason for this

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Climate Change 101 with Bill Nye | National Geographic

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I choosed this video for childreen. Because everyone has got a soul like child. We must remember our childhood. The Children can understand everything. Sometimes we must be a child.

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The Three Little Pigs & Climate Change -the benefits of wood as a low-emission construction material

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I choes this video because it show every think clearly.It show what ıt want to understand easily.I thing we ne to more sensetive to this.

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I choose because this infographic explain everything

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I chose this video because UK is one of the most affected country from climate change. And UK is in danger about climate change. Also in future I want to study in UK for master's. Because of that, when I saw this video at first, it caught my attention.

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Climate change effects on the UK revealed

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I choose this video because give some information about the effect of global warming in recent years.

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I chose this video because talking man
to raise awareness as. We need that. Someno must do something about climate change and this is effective video for this.

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Why I chose this video?Because Greta Thunberg speech affects me everytime.She has a very powerful addressing.And her ideas are different from others.She knows typical suggestions about climate changes but she gives a lot of solutions and examples creatively.She mentioned about herself in this video.She shared that other people's ideas about her climate scientist.And she talked about rich and poor countries that what should they do.At the ending of video, her sentence was simple and great: "Everything needs to change." Exactly,I agree with her!

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The disarming case to act right now on climate change | Greta Thunberg

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I chose this video because many professors and Greta Thunberg’s views gave us about the facts climate change.And they said that” We have too short time to turn everything around.”So we should start to move immediately.

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Climate Change - The Facts with Sir David Attenborough

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I chose this video.Because nature sensible solution for climate change.Nature is a correct solution for climate change for me.

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Climate Change: can nature repair the planet? | The Economist

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I chose this video because this video is talk about the climate change is real and it is very serious so I agree this and I think we should not  wait to find a solution to this situation.

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Climate Change: It’s Real. It’s Serious. And it’s up to us to Solve it. | National Geographic

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Infograph about Climate risks,extreme events and related impacts.

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Climate change is caused by selfish behavior of people. There is no planet we can live on except Earth. If we continue this selfish behavior ,unfortunately, there will be no world to live in.

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Secretary-General António Guterres calls for global action on climate change

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I am worry about climate change.I interested in this video because it is tell us what will happen soon.

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Sea level rise is so much more than melting ice

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Causes and Effects of Climate Change | National Geographic

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Erim Erdemli

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Climate change - one of the biggest global health threats of this century

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Infograph about climate change and health

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Ms. Clerc's post

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Vietnam is one of the most vulnerable countries to climate change - we meet the families on the front lines.