Αποτελέσματα Αναζήτησης
28 Ιαν 2019 · While the understanding of the role that biodiversity at all levels, including a diversity of habitats, can play in mitigating and adapting to climate change is growing rapidly, policy...
Key Points: New data set of global sound speed at the end of XXI century with associated uncertainty: global sound speed generally increases. Climate-induced sound speed variations are substantial in selected “acoustic hotspots”
9 Αυγ 2021 · Sound policy and action are based on sound science. As the IPCC’s Summary for Policy Makers underscores, limiting warming to 1.5C can only be achieved through immediate and significantly scaled-up reductions. The only way to reach this goal is through the rapid implementation of more ambitious NDCs.
It explains how scientiûc and policy debates work, outlines the scientiûc evidence for the reality and seriousness of climate change and the basic atmospheric science that supports it, and discusses policy options and the current state of the policy debate.
Sometimes a combination of observations and models can be used to test planetary-scale hypotheses. For example, the global cooling and drying of the atmosphere observed after the eruption of Mt. Pinatubo (Section 8.6) provided key tests of particular aspects of global climate models (Hansen et al., 1992).
• Global average temperature was 0.98°C (1.76 °F) higher in 2020 than in the late 1800s.15 • The warmest year on record since records began in 1880 was 2016, with 2020 ranking second. In 2020 global average land temperatures experienced a record high, while 2016 global ocean temperatures remain the highest on record.
This Summary for Policymakers (SPM) presents key findings of the Working Group I (WGI) contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6)1 on the physical science basis of climate change. The report builds
