Nian Jianlun Climate Change (2025)

1. Critical transitions in the Amazon forest system - Nature

  • 14 feb 2024 · Regional climatic conditions. Within the twenty-first century, global warming may cause long-term changes in Amazonian climatic conditions.

  • The possibility that the Amazon forest system could soon reach a tipping point, inducing large-scale collapse, has raised global concern1–3. For 65 million years, Amazonian forests remained relatively resilient to climatic variability. Now, the region is increasingly exposed to unprecedented stress from warming temperatures, extreme droughts, deforestation and fires, even in central and remote parts of the system1. Long existing feedbacks between the forest and environmental conditions are being replaced by novel feedbacks that modify ecosystem resilience, increasing the risk of critical transition. Here we analyse existing evidence for five major drivers of water stress on Amazonian forests, as well as potential critical thresholds of those drivers that, if crossed, could trigger local, regional or even biome-wide forest collapse. By combining spatial information on various disturbances, we estimate that by 2050, 10% to 47% of Amazonian forests will be exposed to compounding disturbances that may trigger unexpected ecosystem transitions and potentially exacerbate regional climate change. Using examples of disturbed forests across the Amazon, we identify the three most plausible ecosystem trajectories, involving different feedbacks and environmental conditions. We discuss how the inherent complexity of the Amazon adds uncertainty about future dynamics, but also reveals opportunities for action. Keeping the Amazon forest resilient in the Anthropocene will depend on a combinati...

Critical transitions in the Amazon forest system - Nature

2. A potential collapse of the Atlantic Meridional Overturning Circulation ...

  • 12 dec 2023 · An Atlantic Meridional Overturning Circulation collapse would stabilize the Amazon by increasing rainfall and decreasing temperature in most parts.

  • Observations and models suggest that the Amazon rainforest might transition to a savanna-like state in response to anthropogenic climate and land use change. Here, we combine observations of precipitation, temperature and tree cover with high-resolution comprehensive climate model simulations to investigate the combined effect of global warming and a potential Atlantic Meridional Overturning Circulation collapse on the Amazon. Our results show that, while strong warming lead to forest dieback, an Atlantic Meridional Overturning Circulation collapse would stabilize the Amazon by increasing rainfall and decreasing temperature in most parts. Although an Atlantic Meridional Overturning Circulation collapse would have devastating impacts globally, our results suggest that it may delay or even prevent parts of the Amazon rainforest from dieback. Besides the many negative consequences of its collapse, the interactions we identify here make a tipping cascade, i.e., that an Atlantic Meridional Overturning Circulation collapse would trigger Amazon dieback, appear less plausible. Despite devastating global impacts, a potential collapse of the Atlantic Meridional Overturning Circulation with global warming could lead to cooler and wetter conditions in parts of Amazonia and less rainforest conversion, according to an analysis of climate observations and model projections for the 21st century.

A potential collapse of the Atlantic Meridional Overturning Circulation ...

3. China - Climate Action Tracker

  • Bevat niet: Nian | Resultaten tonen met:Nian

China - Climate Action Tracker

4. The Macroeconomic Impact of Climate Change: Global vs. Local ...

  • 10 mei 2024 · This paper estimates that the macroeconomic damages from climate change are six times larger than previously thought.

  • Founded in 1920, the NBER is a private, non-profit, non-partisan organization dedicated to conducting economic research and to disseminating research findings among academics, public policy makers, and business professionals.

The Macroeconomic Impact of Climate Change: Global vs. Local ...

5. Climate change - Wageningen - WUR

6. Climate change indicators reached record levels in 2023: WMO

  • Bevat niet: Nian Jianlun

  • Observed concentrations of the three main greenhouse gases – carbon dioxide, methane, and nitrous oxide – reached record levels in 2022. Real-time data from specific locations show a continued increase in 2023.

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7. Home | One UN Climate Change Learning Partnership

  • Bevat niet: Nian Jianlun

  • One UN Climate Change Learning Partnership (UN CC:Learn) is a collaborative initiative involving more than 30 multilateral organizations which supports countries in designing and implementing country-driven, results-oriented and sustainable learning to address climate change.

8. Meet The Team - Climate Champions - UNFCCC

  • The current UN Climate Change High-Level Champions for COP28 and COP29, Her Excellency Ms. Razan Al Mubarak and Ms. Nigar Arpadarai build on the legacy of ...

  • At the COP 21 United Nations Climate Change Conference in Paris, governments agreed that mobilizing stronger and more ambitious climate action is urgently required to achieve the goals of the Paris Agreement. To connect the work of governments with the many voluntary and collaborative actions taken by cities, regions, businesses and investors, nations decided to appoint two high-level champions.

9. Climate Change and Children's Health and Well-Being in the United ...

  • 28 mei 2024 · Climate change-related impacts in childhood can have lifelong consequences due to effects on learning, physical health, chronic disease, and ...

  • Climate Change and Children’s Health and Well-Being in the United States Report

Climate Change and Children's Health and Well-Being in the United ...

10. Climate change widespread, rapid, and intensifying – IPCC

  • 9 aug 2021 · However, strong and sustained reductions in emissions of carbon dioxide (CO2) and other greenhouse gases would limit climate change. While ...

  • GENEVA, Aug 9 – Scientists are observing changes in the Earth’s climate in every region and across the whole climate system, according to the latest Intergovernmental Panel on Climate Change (IPCC) Report, released today. Many of the changes observed in the climate are unprecedented in thousands, if not hundreds of thousands of years, and some of the changes already set in motion—such as continued sea level rise—are irreversible over hundreds to thousands of years.

11. Climate change will slow China's progress in reducing infectious ...

  • 17 nov 2014 · China has made significant progress increasing access to tap water and sanitation services, and has sharply reduced the burden of waterborne ...

  • In a study published in the latest edition of Nature Climate Change, Emory researchers found that climate change will blunt China's efforts at further reducing infectious diseases in the decades to come.

12. Sunnylands Statement on Enhancing Cooperation to Address the Climate ...

  • Bevat niet: Nian | Resultaten tonen met:Nian

  • Recalling the meeting between President Xi Jinping and President Joseph R. Biden in Bali, Indonesia, the United States and China reaffirm their commitment to work jointly and together with other countries to address the climate crisis. In this regard, U.S. Special Presidential Envoy for Climate John Kerry and China Special Envoy for Climate Change Xie […]

Sunnylands Statement on Enhancing Cooperation to Address the Climate ...

13. U.S.-China Joint Announcement on Climate Change | whitehouse.gov

  • Bevat niet: Nian | Resultaten tonen met:Nian

  • Beijing, China, 12 November 2014

U.S.-China Joint Announcement on Climate Change | whitehouse.gov

14. [PDF] Global trends in climate change litigation: 2023 snapshot - LSE

  • 12 jun 2023 · Joana Setzer is an Assistant Professorial Research Fellow at the Grantham Research Institute on. Climate Change and the Environment. Catherine ...

15. Education and climate change | Global Education Monitoring Report

  • The first paper in the series focuses on climate change and is in partnership with the Monitoring and Evaluating Climate Communication and Education (MECCE) ...

  • Learning to act for people and planet

Education and climate change | Global Education Monitoring Report

16. Climate change and urbanization inducing a tipping point in the ...

  • As one of the tipping points in the hydrosphere, the exacerbating floods under climate change have posed a global threat to human societies and ecosystems.1 ...

  • The Innovation Geoscience > 2024 Vol. 2 > No. 2 > 100074

Climate change and urbanization inducing a tipping point in the ...

17. Water and Climate Change | UN-Water

  • Climate change is primarily a water crisis. We feel its impacts through worsening floods, rising sea levels, shrinking ice fields, wildfires and droughts.

  • Climate change is p

Water and Climate Change | UN-Water
Nian Jianlun Climate Change (2025)

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