27 hits for "Atmospheric particles"
In flames: Air pollution and human health
While air pollution from PM2.5-emissions have been reduced in Europe and North America, air pollution from wildfires is increasing. With climate change, we will see more wildfires, risking that the impacts of the efforts that have been made to mitigate air pollution and related negative health effects could be diminished.
Health | Atmospheric particles
Take climate-changing aerosols seriously
The dangerous impacts of aerosol changes on vulnerable regions should have been a priority at COP27 after climate policymakers agreed a breakthrough deal to support these parts of the world, scientists have claimed.
Atmospheric particles | Climate risk | Temperature changes | Extreme weather
Aviation needs bolder approaches to climate change than carbon offsets and cleaner fuels
The aviation industry’s response to climate change relies mainly on cleaner fuels and carbon offsetting. Government and industry must experiment with other approaches to bring the climate impact of aviation closer to zero, argues researchers in a Nature commentary.
Transport | Technology for change | Atmospheric particles | Carbon emissions globally
Aviation contributes 3.5% to the human-made drivers of climate change, a new study shows
Aviation accounts for 3.5% of the human-made climate impact. Two-thirds of this impact are caused by emissions other than co₂, a new study shows.
Transport | Climate impacts internationally | Atmospheric particles
How much carbon dioxide can we emit?
COMMENTARY: Despite the complexity of the climate system, there is a rather simple relationship between the long-term temperature increase and the total amount of carbon dioxide emitted. Why, then, is there no clear answer to how much we can emit?
Carbon budget | Emission scenarios | Atmospheric particles | Air pollution | Methane
ARIDITY - The role of anthropogenic dust in the present and future climate system
Dust is the most abundant species of aerosol in the atmosphere. While mineral dust from deserts is the largest source, an important but less well-studied component is soil dust from sparsely vegetated surfaces. Commonly referred to as “anthropogenic dust”, arising from the influence of human activities on land surfaces and subsequent increase in wind erosion and dust emissions, this source is believed to contribute a substantial fraction to the total global dust load. However, the contribution and climate impact of anthropogenic dust, through interactions with radiation, clouds and precipitation, is poorly quantified.
Atmospheric particles | Climate Models | Air pollution | Precipitation changes
CATHY - Climate implications of rapid changes in Asian Anthropogenic Aerosol emissions
Emissions of Asian Anthropogenic Aerosols (A3) are rapidly changing - most notably black carbon and sulphate aerosol precursors from India and China. The resulting range of climate impacts and societal hazards may dominate regionally over greenhouse gas induced trends for the next several decades, but the implications are as yet insufficiently explored. CATHY (Climate implications of rapid changes in Asian Anthropogenic Aerosol emissions: Temperature, Hydrological cycle and variabilitY) tackles the urgent need for quantifying climate related hazards resulting from ongoing and projected changes in A3 emissions.
Climate impacts internationally | Temperature changes | Atmospheric particles | Precipitation changes | Air pollution | Climate Models | Extreme weather | Climate risk
EPIC - Extreme Precipitation In Cleaner air
In EPIC we are investigating a possible link between changes in air pollution and a trend towards more hazardous extreme precipitation. Our overall goal is to increase our understanding of what controls extreme precipitation and reduce the uncertainty in estimates of future extremes. At this stage of our project, we are analyzing observational data and running cloud models to investigate how heavy precipitation reacts to our particle emissions.
Extreme weather | Atmospheric particles | Climate Models
UTRICS: Understanding Temporal aerosol Radiative forcing - Implications for Climate Sensitivity and future warming
Global temperatures are rising due to the accumulation of greenhouse gases in the atmosphere. In addition to increasing greenhouse gas emissions, human activity has changed the composition of particles in the atmosphere. These have masked some of the warming caused by the greenhouse gases. How large is this cooling effect, and how has it changed over time?
ACCEPT: Aerosols, Cloud Changes and Energy transport into the Polar domain: The role of feedbacks to the local climate responser
The Arctic is warming more than twice as fast as the rest of the world, with dramatically decreasing trends in sea-ice and snow cover (AMAP,2017). This ‘Arctic amplification’ of global warming is a feature of human-made climate change, but its causes and consequences are not fully understood.
Arctic | Atmospheric particles | Climate Models
ACACIA – Advancing the Science for Aviation and Climate
The EU-funded project ACACIA (Advancing the Science for Aviation and Climate) aims to provide improved scientific knowledge of the non-co₂ impacts from aviation emissions of relevance for the development of harmonised policies and regulations for a more climate-friendly aviation system.
Transport | Atmospheric particles | Air pollution
AVIATE: How can aviation contribute to a low-carbon society?
The AVIATE (Aviation in a low-carbon society) project will provide better understanding of the climate impact of aviation, both for Norway and globally, and explore options for reducing that impact.
Emission scenarios | Transport | Atmospheric particles | International climate policy | Consumer behaviour | Carbon emissions Norway | Carbon emissions globally
Predicting how the climate will change over the next 20-50 years, as well as defining emissions pathways to keep the world on track, requires a better understanding of how several human and natural factors will affect the climate in coming decades. These include how atmospheric aerosols affect the Earth’s radiation budget, and the roles of clouds and oceans in driving climate change.
Climate Models | Climate risk | Temperature changes | Precipitation changes | Atmospheric particles | Climate impacts internationally