Urgent reduction in greenhouse gas emissions is needed to avoid irreversible tipping points: time is running out
ABSTRACTThis essay addresses climate change and its main causes over the last three decades. Between 1992–2021, global emissions of greenhouse gases (GHGs) have risen continually. Specifically, the major socioeconomic sectors – including (1) energy, (2) industry, (3) land-use/land-use change/agricul...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2023-12-01
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| Series: | All Earth |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/27669645.2023.2178127 |
| _version_ | 1797447497179725824 |
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| author | Ilan Stavi |
| author_facet | Ilan Stavi |
| author_sort | Ilan Stavi |
| collection | DOAJ |
| description | ABSTRACTThis essay addresses climate change and its main causes over the last three decades. Between 1992–2021, global emissions of greenhouse gases (GHGs) have risen continually. Specifically, the major socioeconomic sectors – including (1) energy, (2) industry, (3) land-use/land-use change/agriculture, (4) transportation, (5) building/construction, and (6) waste treatment/disposal – have emitted enormous amounts of GHGs. Between 1992–2019, the combined annual GHG emissions have risen by 53% – from 32.6 to 49.8 Gt CO2 equivalent (CO2e). The combined GHG concentration has increased by 33% – from 382 ppm CO2e in 1992 to 508 ppm CO2e in 2021. The combined radiative forcing has surged by 45% – from 2.226 W m−2 in 1992 to 3.222 W m−2 in 2021. At the current emission rate, the entire GHG credit for limiting global warming to 1.5°C or 2.0°C – according to the Shared Socio-Economic Pathway (SSP) 1–1.9 or SSP1–2.6, respectively – in 2100 compared to preindustrial levels may be fully exploited by~2030. Limiting global warming to 1.5°C or 2.0°C will require total GHG emissions to peak before 2025 at the latest, and be reduced by 43% or 25%, respectively, in 2030 relative to 2019, followed by zero net emissions in the early 2050s or 2070s, respectively. |
| first_indexed | 2024-03-09T13:56:52Z |
| format | Article |
| id | doaj.art-32e1eed375db4b598b1fa809bfaa0305 |
| institution | Directory Open Access Journal |
| issn | 2766-9645 |
| language | English |
| last_indexed | 2024-03-09T13:56:52Z |
| publishDate | 2023-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | All Earth |
| spelling | doaj.art-32e1eed375db4b598b1fa809bfaa03052023-11-30T12:23:43ZengTaylor & Francis GroupAll Earth2766-96452023-12-01351384510.1080/27669645.2023.2178127Urgent reduction in greenhouse gas emissions is needed to avoid irreversible tipping points: time is running outIlan Stavi0Dead Sea and Arava Science Center, Yotvata, IsraelABSTRACTThis essay addresses climate change and its main causes over the last three decades. Between 1992–2021, global emissions of greenhouse gases (GHGs) have risen continually. Specifically, the major socioeconomic sectors – including (1) energy, (2) industry, (3) land-use/land-use change/agriculture, (4) transportation, (5) building/construction, and (6) waste treatment/disposal – have emitted enormous amounts of GHGs. Between 1992–2019, the combined annual GHG emissions have risen by 53% – from 32.6 to 49.8 Gt CO2 equivalent (CO2e). The combined GHG concentration has increased by 33% – from 382 ppm CO2e in 1992 to 508 ppm CO2e in 2021. The combined radiative forcing has surged by 45% – from 2.226 W m−2 in 1992 to 3.222 W m−2 in 2021. At the current emission rate, the entire GHG credit for limiting global warming to 1.5°C or 2.0°C – according to the Shared Socio-Economic Pathway (SSP) 1–1.9 or SSP1–2.6, respectively – in 2100 compared to preindustrial levels may be fully exploited by~2030. Limiting global warming to 1.5°C or 2.0°C will require total GHG emissions to peak before 2025 at the latest, and be reduced by 43% or 25%, respectively, in 2030 relative to 2019, followed by zero net emissions in the early 2050s or 2070s, respectively.https://www.tandfonline.com/doi/10.1080/27669645.2023.2178127Climate change mitigation and adaptationclimatic positive feedbacksConference of Parties (COP)Representative Concentration Pathway (RCP) 1.9/RCP2.6United Nations Framework Convention on Climate Change (UNFCCC) |
| spellingShingle | Ilan Stavi Urgent reduction in greenhouse gas emissions is needed to avoid irreversible tipping points: time is running out All Earth Climate change mitigation and adaptation climatic positive feedbacks Conference of Parties (COP) Representative Concentration Pathway (RCP) 1.9/RCP2.6 United Nations Framework Convention on Climate Change (UNFCCC) |
| title | Urgent reduction in greenhouse gas emissions is needed to avoid irreversible tipping points: time is running out |
| title_full | Urgent reduction in greenhouse gas emissions is needed to avoid irreversible tipping points: time is running out |
| title_fullStr | Urgent reduction in greenhouse gas emissions is needed to avoid irreversible tipping points: time is running out |
| title_full_unstemmed | Urgent reduction in greenhouse gas emissions is needed to avoid irreversible tipping points: time is running out |
| title_short | Urgent reduction in greenhouse gas emissions is needed to avoid irreversible tipping points: time is running out |
| title_sort | urgent reduction in greenhouse gas emissions is needed to avoid irreversible tipping points time is running out |
| topic | Climate change mitigation and adaptation climatic positive feedbacks Conference of Parties (COP) Representative Concentration Pathway (RCP) 1.9/RCP2.6 United Nations Framework Convention on Climate Change (UNFCCC) |
| url | https://www.tandfonline.com/doi/10.1080/27669645.2023.2178127 |
| work_keys_str_mv | AT ilanstavi urgentreductioningreenhousegasemissionsisneededtoavoidirreversibletippingpointstimeisrunningout |