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相关概念视频

Global Climate Change01:50

Global Climate Change

24.8K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
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Sustainable Development01:43

Sustainable Development

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As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
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What is Climate?01:16

What is Climate?

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Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
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The Carbon Cycle01:14

The Carbon Cycle

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Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
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Softwoods and Hardwoods01:28

Softwoods and Hardwoods

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Softwoods and hardwoods, derived from different types of trees, are distinguished by their leaf structures and cellular compositions, each serving unique purposes in construction and manufacturing. Softwoods come from cone-bearing trees with needle-like leaves and are predominantly composed of longitudinal cells called tracheids and a smaller proportion of radial cells known as rays. Due to their cellular structure, softwoods are commonly used in construction for structural frames, sheathing,...
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Adaptations that Reduce Water Loss01:57

Adaptations that Reduce Water Loss

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Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
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相关实验视频

Updated: Sep 16, 2025

Author Spotlight: On-Site Biochar Production for Woody Debris Incineration in Forestry
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Author Spotlight: On-Site Biochar Production for Woody Debris Incineration in Forestry

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针对全球森林提供气候融资.

Kemen G Austin1,2, Alice Favero3, Nicklas Forsell4

  • 1RTI International, Center for Applied Economics and Strategy, 3040 E Cornwallis Rd, Durham, NC, USA. kemen.austin@tnc.org.

Nature communications
|July 11, 2025
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概括

实现以森林为基础的气候减缓目标需要大量投资,但全球协调可以在没有额外成本的情况下加倍减缓努力. 这样可以优化气候融资,使其产生更大的影响.

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The Calibration and Use of Capacitance Sensors to Monitor Stem Water Content in Trees
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Simulating Impacts of Ice Storms on Forest Ecosystems
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科学领域:

  • 环境科学 环境科学
  • 气候变化经济学 气候变化经济学
  • 林业管理 林业管理

背景情况:

  • 有效地分配气候融资需要对各部门和地区的减缓成本提供全面的数据.
  • 国家自主贡献 (NDC) 概述了基于森林的区域缓解目标,但其成本效益有所不同.
  • 目前的承诺可能无法充分利用具有低成本缓解潜力的地区.

研究的目的:

  • 估计从NDCs获得的实现区域森林缓解目标所需的金融投资.
  • 通过全球协调气候融资,分析通过全球协调气候融资增加缓解的潜力.
  • 为未来的气候融资策略提供信息,并开发增强的NDC.

主要方法:

  • 估计区域森林缓解目标所需的资金,从NDCs汇总.
  • 分析不同碳价格情景下 (低于100美元/CO2) 的减缓成本和潜力.
  • 建模一个全球协调场景,以实现最佳的资金分配和减缓措施的实施.

主要成果:

  • 占全球森林碳的70%的地区可以满足其NDC,碳价格低于100美元/CO2.
  • 预计到2030年,每年需要200-7200亿美元的投资来实现区域目标.
  • 全球协调情景可以与NDC情景相比,在相同的财务成本下,将2030年的减缓量翻一番.

结论:

  • 除了目前的国家承诺之外,还存在显著的具有成本效益的森林缓解潜力.
  • 全球气候融资协调可以大大提高减缓效率和规模.
  • 基于成本效益的优化融资分配对于实现雄心勃勃的气候目标和为未来的NDC提供信息至关重要.