scholarly journals Geoscientists Can Help Reduce the Threat of Nuclear Weapons

Eos ◽  
2021 ◽  
Vol 102 ◽  
Author(s):  
Alan Robock ◽  
Stewart Prager
Keyword(s):  
Climate Change ◽  
Nuclear Weapons ◽  
Nuclear War ◽  
Rapid Climate Change

A nuclear war would claim many lives from its direct impacts and cause rapid climate change that would further imperil humanity. Scientists can help shape policies to put us on a safer path.

Modelling ecosystem adaptation and dangerous rates of global warming

2019 ◽  
Vol 3 (2) ◽  
pp. 221-231 ◽  
Author(s):  
Rebecca Millington ◽  
Peter M. Cox ◽  
Jonathan R. Moore ◽  
Gabriel Yvon-Durocher
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Diffusion Rate ◽  
Individual Species ◽  
Genetic Evolution ◽  
Rates Of Change ◽  
Rapid Climate Change ◽  
Warming Climate ◽  
Intraspecies Competition ◽  
High Trait

Abstract We are in a period of relatively rapid climate change. This poses challenges for individual species and threatens the ecosystem services that humanity relies upon. Temperature is a key stressor. In a warming climate, individual organisms may be able to shift their thermal optima through phenotypic plasticity. However, such plasticity is unlikely to be sufficient over the coming centuries. Resilience to warming will also depend on how fast the distribution of traits that define a species can adapt through other methods, in particular through redistribution of the abundance of variants within the population and through genetic evolution. In this paper, we use a simple theoretical ‘trait diffusion’ model to explore how the resilience of a given species to climate change depends on the initial trait diversity (biodiversity), the trait diffusion rate (mutation rate), and the lifetime of the organism. We estimate theoretical dangerous rates of continuous global warming that would exceed the ability of a species to adapt through trait diffusion, and therefore lead to a collapse in the overall productivity of the species. As the rate of adaptation through intraspecies competition and genetic evolution decreases with species lifetime, we find critical rates of change that also depend fundamentally on lifetime. Dangerous rates of warming vary from 1°C per lifetime (at low trait diffusion rate) to 8°C per lifetime (at high trait diffusion rate). We conclude that rapid climate change is liable to favour short-lived organisms (e.g. microbes) rather than longer-lived organisms (e.g. trees).

The Subtle Knife

2019 ◽  
Vol 2 (1) ◽  
pp. 25
Author(s):  
Peter Rautenbach
Keyword(s):  
Nuclear Weapons ◽  
Psychological Effects ◽  
Nuclear Deterrence ◽  
Cyber Warfare ◽  
Nuclear War ◽  
Hybrid Warfare ◽  
Key Concepts ◽  
Polar Opposite

This article looks to tie together the polar opposite of hybrid warfare and nuclear deterrence. The reason for this is that hybrid warfare and its effects on nuclear deterrence need to be explored as there appears to be substantial increases in hybrid warfare’s usage. This article found that hybrid warfare has an erosion like effect on nuclear deterrence because it increases the likelihood that nuclear weapons will be used. This may be due to both the fact that hybrid warfare can ignore conventional redlines, but also because the cyber aspect of hybrid warfare has unintended psychological effects on how deterrence functions. how does this relate to nuclear war? In short, cyber warfare attacks key concepts which make nuclear deterrence a viable strategy including the concepts of stability, clarity, and rationality. Therefore, hybrid warfare increases the chance of nuclear use.

A Bifurcated Global Nuclear Order

2018 ◽  
Author(s):  
Ramesh Thakur
Keyword(s):  
Public Opinion ◽  
Civil Society ◽  
United Nations ◽  
Nuclear Weapons ◽  
Arms Control ◽  
Full Range ◽  
Nuclear Deterrence ◽  
Nuclear War ◽  
The World ◽  
The United Nations

The very destructiveness of nuclear weapons makes them unusable for ethical and military reasons. The world has placed growing restrictions on the full range of nuclear programs and activities. But with the five NPT nuclear powers failing to eliminate nuclear arsenals, other countries acquiring the bomb, arms control efforts stalled, nuclear risks climbing, and growing awareness of the catastrophic humanitarian consequences of nuclear war, the United Nations adopted a new treaty to ban the bomb. Some technical anomalies between the 1968 and 2017 treaties will need to be harmonized and the nuclear-armed states’ rejection of the ban treaty means it will not eliminate any nuclear warheads. However, it will have a significant normative impact in stigmatizing the possession, use and threat of use of nuclear weapons and serve as a tool for civil society to mobilize domestic and world public opinion against the doctrine of nuclear deterrence.

scholarly journals Engineering Climate-Change-Resilient Crops: New Tools and Approaches

2021 ◽  
Vol 22 (15) ◽  
pp. 7877
Author(s):  
Fahimeh Shahinnia ◽  
Néstor Carrillo ◽  
Mohammad-Reza Hajirezaei
Keyword(s):  
Climate Change ◽  
Plant Growth ◽  
Sustainable Agriculture ◽  
Stress Tolerance ◽  
Crop Yield ◽  
Plant Science ◽  
Chemical Treatments ◽  
Coated Nanoparticles ◽  
Rapid Climate Change ◽  
Protective Resources

Environmental adversities, particularly drought and nutrient limitation, are among the major causes of crop losses worldwide. Due to the rapid increase of the world’s population, there is an urgent need to combine knowledge of plant science with innovative applications in agriculture to protect plant growth and thus enhance crop yield. In recent decades, engineering strategies have been successfully developed with the aim to improve growth and stress tolerance in plants. Most strategies applied so far have relied on transgenic approaches and/or chemical treatments. However, to cope with rapid climate change and the need to secure sustainable agriculture and biomass production, innovative approaches need to be developed to effectively meet these challenges and demands. In this review, we summarize recent and advanced strategies that involve the use of plant-related cyanobacterial proteins, macro- and micronutrient management, nutrient-coated nanoparticles, and phytopathogenic organisms, all of which offer promise as protective resources to shield plants from climate challenges and to boost stress tolerance in crops.

scholarly journals New insights into lake responses to rapid climate change: the Younger Dryas in Lake Gościąż, central Poland

Boreas ◽  
2020 ◽  
Author(s):  
Daniela Müller ◽  
Rik Tjallingii ◽  
Mateusz Płóciennik ◽  
Tomi P. Luoto ◽  
Bartosz Kotrys ◽  
...  
Keyword(s):  
Climate Change ◽  
Younger Dryas ◽  
Central Poland ◽  
Rapid Climate Change

Rapid climate change has increased post‐breeding and autumn bird density at the eastern limit of Europe

2020 ◽  
Vol 35 (1) ◽  
pp. 235-242
Author(s):  
Oleg Askeyev ◽  
Arthur Askeyev ◽  
Igor Askeyev ◽  
Tim Sparks
Keyword(s):  
Climate Change ◽  
Bird Density ◽  
Rapid Climate Change

The Four Paradoxes of Nuclear Strategy

1964 ◽  
Vol 58 (1) ◽  
pp. 23-35 ◽  
Author(s):  
Hans J. Morgenthau
Keyword(s):  
Middle Ages ◽  
Nuclear Weapons ◽  
Use Of Force ◽  
Nuclear War ◽  
Nuclear Strategy ◽  
Nuclear Age ◽  
Modern Age ◽  
Modes Of Thought ◽  
The Impact ◽  
The Middle Ages

The nuclear age has ushered in a novel period of history, as distinct from the age that preceded it as the modern age has been from the Middle Ages or the Middle Ages have been from antiquity. Yet while our conditions of life have drastically changed under the impact of the nuclear age, we still live in our thoughts and act through our institutions in an age that has passed. There exists, then, a gap between what we think about our social, political, and philosophic problems and the objective conditions which the nuclear age has created.This contradiction between our modes of thought and action, belonging to an age that has passed, and the objective conditions of our existence has engendered four paradoxes in our nuclear strategy: the commitment to the use of force, nuclear or otherwise, paralyzed by the fear of having to use it; the search for a nuclear strategy which would avoid the predictable consequences of nuclear war; the pursuit of a nuclear armaments race joined with attempts to stop it; the pursuit of an alliance policy which the availability of nuclear weapons has rendered obsolete. All these paradoxes result from the contrast between traditional attitudes and the possibility of nuclear war and from the fruitless attempts to reconcile the two.

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