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Climate change in India is one of the most alarming problems faced by our community. Due to adverse and sudden changes in climate in past few years, mankind is at threat. Various impacts of climate change include extreme heat, changing…

Applications · Statistics 2022-01-26 Rutvij Wamanse , Tushuli Patil

Recent analyses indicate that the amount of atmospheric CO2 required to cause dangerous climate change is at most 450 ppm, and likely less than that. Reductions of non-CO2 climate forcings can provide only moderate, albeit important,…

Atmospheric and Oceanic Physics · Physics 2007-06-27 J. Hansen

We do several simple calculations and measurements in an effort to gain understanding of global warming and the carbon cycle. Some conclusions are interesting: (i) There has been global warming since the end of the "little ice age" around…

Atmospheric and Oceanic Physics · Physics 2007-05-23 C. Fabara , B. Hoeneisen

To limit global warming to pre-industrial levels, global governments, industry and academia are taking aggressive efforts to reduce carbon emissions. The evaluation of anthropogenic carbon dioxide (CO$_2$) emissions, however, depends on the…

Atmospheric and Oceanic Physics · Physics 2022-10-25 Zhengwen Zhang , Jinjin Gu , Junhua Zhao , Jianwei Huang , Haifeng Wu

Understanding the lifetime of CO2 in the atmosphere is critical for predictions regarding future climate changes. A simple mass conservation analysis presented here generates tight estimations for the atmosphere's retention time constant.…

Atmospheric and Oceanic Physics · Physics 2014-12-31 Riccardo DeSalvo

In our previous paper "No experimental evidence for the significant anthropogenic climate change" we had a reference to this paper. Thus, we have presented a new theory: how Henry's Law regulates the concentration of CO$_2$ in the…

Atmospheric and Oceanic Physics · Physics 2025-04-15 Jyrki Kauppinen , Pekka Malmi

Air pollution is a serious issue in the world. Around 98% of cities with a population of over 100,000 people in low and middle-income countries do not meet air quality standards, while in high-income countries, the number has decreased by…

Signal Processing · Electrical Eng. & Systems 2019-11-27 Purwantoro , Arip Solehudin , Nono Heryana

Quantitative estimates of the contributions of the anthropogenic forcing, characterized by changes in the radiative forcing of atmospheric greenhouse gases (CO2, in particular), and solar activity variations to the trends of the global…

Atmospheric and Oceanic Physics · Physics 2024-06-11 Igor I. Mokhov , Dmitry A. Smirnov

The recent discovery of long term growth constants in the accumulation of atmospheric CO2, confirmed by two methods, enables analog methods for dating the beginning of climate change at ~1780 and projecting its near term future. Here we…

Physics and Society · Physics 2019-11-12 Jessie Lydia Henshaw

Although developing countries are called to participate in CO2 emission reduction efforts to avoid dangerous climate change, the implications of proposed reduction schemes in human development standards of developing countries remain a…

Physics and Society · Physics 2012-02-21 Luís Costa , Diego Rybski , Jürgen P. Kropp

The world-wide lockdown in response to the COVID-19 pandemic in year 2020 led to economic slowdown and large reduction of fossil fuel CO2 emissions, but it is unclear how much it would reduce atmospheric CO2 concentration, and whether it…

Atmospheric and Oceanic Physics · Physics 2020-10-27 Ning Zeng , Pengfei Han , Di Liu , Zhiqiang Liu , Tomohiro Oda , Cory Martin , Zhu Liu , Bo Yao , Wanqi Sun , Pucai Wang , Qixiang Cai , Russell Dickerson , Shamil Maksyutov

China's pledge to reach carbon neutrality before 2060 is an ambitious goal and could provide the world with much-needed leadership on how to limit warming to +1.5C warming above pre-industrial levels by the end of the century. But the…

Improved knowledge of glacial-to-interglacial global temperature change implies that fast-feedback equilibrium climate sensitivity (ECS) is 1.2 +/- 0.3{\deg}C (2$\sigma$) per W/m$^2$. Consistent analysis of temperature over the full…

We estimate cumulative CO2 emissions during the period 2000 to 2050 from developed and developing countries based on the empirical relationship between CO2 per capita emissions (due to fossil fuel combustion and cement production) and…

Physics and Society · Physics 2012-02-21 Luís Costa , Diego Rybski , Jürgen P. Kropp

Mitigation of climate change will highly rely on a carbon emission trajectory that achieves carbon neutrality by the 2050s. The ocean plays a critical role in modulating climate change by sequestering CO2 from the atmosphere. Relying on the…

In this work, we propose an approach to teaching global warming adapted to the new high school curricula. The aim is to build a link between CO$_2$ emissions and the rise in the Earth's average temperature, based as far as possible on…

Climate change is likely to pose enormous challenges for agriculture, water resources, infrastructure, and livelihood of millions of people living in South Asia. Here, we develop daily bias-corrected data of precipitation, maximum and…

Atmospheric and Oceanic Physics · Physics 2020-06-24 Vimal Mishra , Udit Bhatia , Amar Deep Tiwari

Machine learning weather models trained on observed atmospheric conditions can outperform conventional physics-based models at short- to medium-range (1-14 day) forecast timescales. Here we take the machine learning weather model ACE2,…

Atmospheric and Oceanic Physics · Physics 2025-04-01 Chris Kent , Adam A. Scaife , Nick J. Dunstone , Doug Smith , Steven C. Hardiman , Tom Dunstan , Oliver Watt-Meyer

This paper presents a new precipitation dataset that is daily, has a spatial resolution of one degree on a quasi-global scale, and spans more than 42 years, using machine learning techniques. The ultimate goal of this dataset is to provide…

Atmospheric and Oceanic Physics · Physics 2024-09-17 Hiroshi G. Takahashi

Using a recently developed formalism, we present an in-depth analysis of how the thermodynamics of the climate system varies with CO2 concentration by performing experiments with a simplified yet Earth-like climate model. We find that, in…

Atmospheric and Oceanic Physics · Physics 2020-11-04 V. Lucarini , K. Fraedrich , F. Lunkeit