Can International Technological Diffusion Substitute for Coordinated Global Policies to Mitigate Climate Change?
Can International Technological Diffusion Substitute for Coordinated Global Policies to Mitigate Climate Change?
复制标题
国际技术扩散可以替代协调的全球政策来减缓气候变化吗？
DOI：
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
P. Barrett
中科院分区：
文献类型：
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作者：
P. Barrett
简而言之，是的。我使用多区域综合评估模型和特定燃料的内生技术变革来研究欧洲和中国到本世纪中叶将排放量减少到零的影响。如果没有国际技术扩散，这不足以避免灾难性的气候变化。但当创新能够扩散到海外时，长期气温上升将被限制在 3 度之内。出现这种情况是因为政策不仅鼓励绿色创新，还阻止肮脏的创新，否则这些创新就会蔓延。减排地区最有效的一揽子政策是由碳税资助的研究补贴，短期内由碳税对能源构成的直接影响推动，随后由研究补贴引发的创新推动。绿色生产补贴是无效的，因为它们削弱了创新的动力。
In short, yes. I use a multi-region integrated assessment model with fuel-specific endogenous technical change to examine the impact of Europe and China reducing emissions to zero by mid-century. Without international technological diffusion this is insufficient to avoid catastrophic climate change. But when innovation can diffuse overseas, long-run temperature increases are limited to 3 degrees. This occurs because policy not only encourages green innovations but also dissuades dirty innovations which would otherwise spread. The most effective policy package in emissions-reducing regions is a research subsidy funded by a carbon tax, driven in the short term by the direct effect of the carbon tax on the composition of energy, and later by innovation induced by research subsidies. Green production subsidies are ineffective because they undermine incentives for innovation.
影响因子：
5.9
作者：
Dechezlepretre, Antoine;Glachant, Matthieu;Meniere, Yann
通讯作者：
Meniere, Yann