News Briefs: Although sulfur dioxide emissions have fallen sharply over the past 20 years, greenhouse gas emissions continue to rise

2000 ◽  
Vol 34 (7) ◽  
pp. 167A-167A
Keyword(s):  
Sulfur Dioxide ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Gas Emissions ◽  
Sulfur Dioxide Emissions ◽  
The Past

Standards als Steuerungsinstrumente

2015 ◽  
Vol 59 (1) ◽  
Author(s):  
Hannah Witting
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Gas Emissions ◽  
Carbon Footprints ◽  
Carbon Footprinting ◽  
The Past ◽  
Current State ◽  
Open Questions ◽  
Controlling Mechanism

Standards as a controlling mechanism: Methods and effects of carbon footprinting in the logistic sector. Carbon footprints describe the greenhouse gas emissions of predefined objects, such as products, companies, persons or transport units. Corresponding emission calculation standards have been developed and their application increased over the past decade. The article discusses this development, the current state of implementation and open questions regarding application and harmonization using the example of the logistic sector. Additionally, the author explores the question, how carbon footprints contribute to CO

A proposed approach to estimate and reduce net greenhouse gas emissions from whole farms

2006 ◽  
Vol 86 (3) ◽  
pp. 401-418 ◽  
Author(s):  
H H Janzen ◽  
D A Angers ◽  
M. Boehm ◽  
M. Bolinder ◽  
R L Desjardins ◽  
...  
Keyword(s):  
Climate Change ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Key Words ◽  
Greenhouse Gas Mitigation ◽  
Interactive Effects ◽  
Gas Emissions ◽  
The Past ◽  
Parallel Streams ◽  
Farm Types

Greenhouse gas emissions from farms can be suppressed in two ways: by curtailing the release of these gases (especially N2O and CH4), and by storing more carbon in soils, thereby removing atmospheric CO2. But most practices have multiple interactive effects on emissions throughout a farm. We describe an approach for identifying practices that best reduce net, whole-farm emissions. We propose to develop a “Virtual Farm”, a series of interconnected algorithms that predict net emissions from flows of carbon, nitrogen, and energy. The Virtual Farm would consist of three elements: descriptors, which characterize the farm; algorithms, which calculate emissions from components of the farm; and an integrator, which links the algorithms to each other and the descriptors, generating whole-farm estimates. Ideally, the Virtual Farm will be: boundary-explicit, with single farms as the fundamental unit; adaptable to diverse farm types; modular in design; simple and transparent; dependent on minimal, attainable inputs; internally consistent; compatible with models developed elsewhere; and dynamic (“seeing”into the past and the future). The Virtual Farm would be constructed via two parallel streams - measurement and modeling - conducted iteratively. The understanding built into the Virtual Farm may eventually be applied to issues beyond greenhouse gas mitigation. Key words: CO2, N2O, CH4, agroecosystems, models, climate change

scholarly journals Development of a model for energy efficiency management of a ship at different stages of its lifecycle

2021 ◽  
pp. 17-20
Author(s):  
Yevgeniy Kalinichenko ◽  
Oleksandr Shumylo ◽  
Mykhaylo Kourov
Keyword(s):  
Energy Efficiency ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Carbon Dioxide Emissions ◽  
Gas Emissions ◽  
The Past ◽  
Management Plans ◽  
Operational Phase ◽  
The Cost ◽  
Design Construction

The problem of increasing energy efficiency in commercial shipping has been in the focus of attention of many specialists over the past few decades. The adopted and entered into force resolutions of the International Maritime Organization (IMO) require ship-owners to develop and implement energy efficiency management plans. Considerable and increased attention is now being paid to the solution of this problem. However, it has not yet been possible to achieve real practical results – commercial shipping already accounts for more than 3 % of greenhouse gas emissions, and this value is growing from year to year. The reason for this effect is the practically absence of a systematic scientifically grounded approach to the issue. Management of carbon dioxide emissions into the atmosphere is mainly in the operational phase of the ship, although the foundations are laid during the design, construction, modernization and refurbishment phases. This study is aimed at developing a comprehensive model for managing the energy efficiency of a ship throughout the entire life cycle. It is proposed to use the cost of a full cycle and the coefficient of energy efficiency as target functions of the model. A method for solving the problem of two-criterion optimization is proposed. The use of this model will be able to significantly reduce the amount of greenhouse gas emissions

German carbon dividend drive will inspire more nations

2021 ◽  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Emissions Trading ◽  
Coalition Government ◽  
Trading System ◽  
Gas Emissions ◽  
Content Type ◽  
The Past ◽  
Carbon Prices ◽  
Emissions Trading System

Significance With the advent of China’s national emissions trading system in the past year, carbon prices now cover more than one-fifth of global greenhouse gas emissions. Yet doubts remain over whether they are high enough to force decarbonisation. Impacts Higher carbon prices will be more effective in curbing emissions than the relatively low prices that have prevailed in the past. Germany’s new coalition government will include the Greens and Free Democrats, parties committed to carbon dividends and carbon pricing. The successful rollout of this policy in Germany could serve as a model for Europe and beyond.

Global renewable energy trends and Hungary

2012 ◽  
Vol 3 (1) ◽  
pp. 81-85 ◽  
Author(s):  
A. Talamon
Keyword(s):  
Renewable Energy ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Oil Prices ◽  
Policy Support ◽  
Comparison Analysis ◽  
Gas Emissions ◽  
Energy Mix ◽  
The Past ◽  
New Policies

Abstract Policy support for renewable energy has increased considerably over the past decade. Two drivers underpin this trend: first, the effort to constrain growth in greenhouse-gas emissions and secondly, the concerns to diversify the supply mix (promoted particularly by high oil prices, especially in 2005–2008). To address these concerns, more and more governments are adopting targets and taking measures to increase the share of renewables in the energy mix. Worldwide, traditional and modern renewables together supplied 27% of total demand for heat, or 1059 Mtoe, in 2008. This increases to nearly 1400 Mtoe (1 Mtoe = 42 PJ) in 2035 in the New Policies Scenario, meeting 29% of total demand for heat. The share of modern renewables in total renewables for heat grows from 29% to 48%. This paper is a comparison analysis of the global and the Hungarian renewable energy trends.

PSV-12 The impact of modern diets and growth technologies on animal growth performance and the carbon footprint of cattle feeding

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 305-305
Author(s):  
David M Crawford ◽  
Kristin E Hales ◽  
Taylor M Smock ◽  
Andy Cole ◽  
Kendall L Samuelson
Keyword(s):  
Growth Performance ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Carbon Footprint ◽  
Technology Use ◽  
Feedlot Cattle ◽  
Feed Ratio ◽  
Cattle Production ◽  
Gas Emissions ◽  
The Past

Abstract Both dietary ingredients and technology used in the feedlot cattle industry have evolved in the past 30 years. As consumer concern for the sustainability of the feedlot cattle production increases, it is important to understand how production efficiency and greenhouse gas emissions have changed in this period. For this study, a model was developed to represent feedlot diets and technologies used in 1990 vs. 2020 and evaluate changes in growth performance and carbon footprint. Dietary changes from 1990 to 2020 included the use of byproduct feeds while decreasing corn and dry roughage inclusion rates. In 1990, available technologies included estradiol-only implants and monensin as a feed additive; whereas in 2020 use of combination implants including both trenbolone acetate and estradiol, monensin, and ractopamine hydrochloride (in the final 28 to 42 d) were common. In both 1990 and 2020 use of available technologies increased final body weight (BW), average daily gain (ADG), feed efficiency, and hot carcass weight (HCW) compared to no technology. From 1990 to 2020 initial BW, final BW, ADG, gain to feed ratio, and HCW increased, and dry matter intake decreased. Total days on feed (DOF) also increased by 43 days from 1990 to 2020. Compared to no technology, use of technologies in both 1990 and 2020 decreased total greenhouse gas emissions per animal (CO2e). Because cattle had greater DOF in 2020 than 1990, all sources of greenhouse gas emissions per animal increased. However, when expressed as CO2e/kg BW gain, emissions have decreased by 12.6% because of greater total BW gain in 2020. Feedlots in 2020 produced 48.15% more BW gain with 6.7% less cattle, while only increasing total CO2e by 23.42%, indicating changes in technologies and diet formulations have improved efficiency and reduced the carbon footprint of feedlot cattle production in the past 30 years.

Low-Carbon Russia: Prospects after the Crisis

2009 ◽  
pp. 107-120 ◽  
Author(s):  
I. Bashmakov
Keyword(s):  
Economic Growth ◽  
Potential Energy ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Low Carbon ◽  
Modeling Tools ◽  
Gas Emissions ◽  
Scenario Approach

On the eve of the worldwide negotiations of a new climate agreement in December 2009 in Copenhagen it is important to clearly understand what Russia can do to mitigate energy-related greenhouse gas emissions in the medium (until 2020) and in the long term (until 2050). The paper investigates this issue using modeling tools and scenario approach. It concludes that transition to the "Low-Carbon Russia" scenarios must be accomplished in 2020—2030 or sooner, not only to mitigate emissions, but to block potential energy shortages and its costliness which can hinder economic growth.

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