Quantifying Nature Positive

To become mainstream, Nature Positive development needs positive messaging, measures and metrics to guide, plan and assess urban outcomes. With accelerating climate crisis and negative messages getting the upper-hand, it is important to avoid paralysis by bad news. Whilst striving for a nature positive world, more effort should be on moving beyond zero to qualify and quantify benefits, gains and regenerative outcomes instead of around damage and loss sticking points. Life Cycle Benefit Assessment (LCBA) methods measure gains in accelerating regeneration and climate security that enables a good news focus. Its reach beyond negative quantifies and shows positive gain beyond zero loss outcomes. The aims are to clarify concepts, challenges and quantitative methods then review real-world 3rd party Certified nature positive case studies. Climate security, human wellness and resource viability gains inside safe operating space within planetary boundaries are quantified as positive benefits. contrary to conventional Life Impact Cycle Impact Assessment LCBA assigns damage losses as negatives debts and benefit gains as positive savings. It concludes that LCBA remains under development with more research needed to model economic outcomes.

Mixed Reality-Enhanced Intuitive Teleoperation with Hybrid Virtual Fixtures for Intelligent Robotic Welding

This paper presents an integrated scheme based on a mixed reality (MR) and haptic feedback approach for intuitive and immersive teleoperation of robotic welding systems. By incorporating MR technology, the user is fully immersed in a virtual operating space augmented by real-time visual feedback from the robot working space. The proposed robotic tele-welding system features imitative motion mapping from the user’s hand movements to the welding robot motions, and it enables the spatial velocity-based control of the robot tool center point (TCP). The proposed mixed reality virtual fixture (MRVF) integration approach implements hybrid haptic constraints to guide the operator’s hand movements following the conical guidance to effectively align the welding torch for welding and constrain the welding operation within a collision-free area. Onsite welding and tele-welding experiments identify the operational differences between professional and unskilled welders and demonstrate the effectiveness of the proposed MRVF tele-welding framework for novice welders. The MRVF-integrated visual/haptic tele-welding scheme reduced the torch alignment times by 56% and 60% compared to the MRnoVF and baseline cases, with minimized cognitive workload and optimal usability. The MRVF scheme effectively stabilized welders’ hand movements and eliminated undesirable collisions while generating smooth welds.

Investigation of SARS-CoV-2 inactivation using UV-C LEDs in public environments via ray-tracing simulation

This paper proposes an investigating SARS-CoV-2 inactivation on surfaces with UV-C LED irradiation using our in-house-developed ray-tracing simulator. The results are benchmarked with experiments and Zemax OpticStudio commercial software simulation to demonstrate our simulator's easy accessibility and high reliability. The tool can input the radiant profile of the flexible LED source and accurately yield the irradiance distribution emitted from an LED-based system in 3D environments. The UV-C operating space can be divided into the safe, buffer, and germicidal zones for setting up a UV-C LED system. Based on the published measurement data, the level of SARS-CoV-2 inactivation has been defined as a function of UV-C irradiation. A realistic case of public space, i.e., a food court in Singapore, has been numerically investigated to demonstrate the relative impact of environmental UV-C attenuation on the SARS-CoV-2 inactivation. We optimise a specific UV-C LED germicidal system and its corresponding exposure time according to the simulation results. These ray-tracing-based simulations provide a useful guideline for safe deployment and efficient design for germicidal UV-C LED technology.

Environmental sustainability and scientific publishing: EASE manifesto

Human impacts on the Earth have become so pervasive as to drive global scale changes leading some scientists to propose a new geological epoch, the Anthropocene. A name which reflects the huge and sweeping changes human activities have caused to the Earth. Furthermore, these rapidly expanding and accelerating activities threaten to push aspects of the Earth system beyond  the relatively stable and safe space in which the entirety of human history occurred, the Holocene. This safe operating space is characterised by a set of nine planetary boundaries1 within which humanity should be able to continue to develop and thrive for generations to come. These include: climate change, biosphere integrity, biogeochemical flows and freshwater use. Crossing these boundaries risks generating large-scale, rapid or irreversible environmental changes. Reducing the environmental impact of our activities in order to keep within a safe operating space for humanity and the linked goal of providing a basic social foundation for everyone requires global actions. Every individual, company, institution and organisation, whether large or small, public or private, needs to contribute – ‘think global, act local’. Scientific publishing as a key player in discussing and disseminating research on climate heating and the biodiversity crisis has transformed from print to digital journals and e-books over recent decades but we must do more. The European Association of Science Editors (EASE) is an international community of individuals and associations engaged in science communication and editing. As such, EASE can help and support its members to engage in different ways to achieve and communicate efforts to reduce our environmental footprints for example by becoming carbon neutral (or even carbon negative) irrespective of the type of organisation they work in. Below are some suggestions for how editors can take steps to reduce their environmental footprint in their own particular circumstances and thereby contribute to the overall effort to reduce environmental damages. Not all suggestions will be relevant to everyone and structural or organisational change will have a greater impact than individual actions, but together we can make a difference.

Social Policy Without Growth: Moving Towards Sustainable Welfare States

Growth-dependent welfare states contribute to climate emergency. The ecological economics, degrowth, and sustainable welfare literatures demonstrate that to re-embed Western production and consumption patterns in environmental limits, an encompassing social-ecological transformation would need to be initiated very soon. This article focuses on the potential roles of the welfare state and social policy in this transformation, applying the concepts of ‘sustainable welfare’ and ‘safe-operating space’. Based on two Swedish studies, it also provides an empirical analysis of the popularity of selected eco-social policies designed to steer the economy and society towards this space: maximum and basic incomes, taxes on wealth and meat, as well as working time reductions. In analogy to the historical role of the state in reconstituting the welfare-work nexus in the post-WWII era and its present engagement in the context of the Covid-19 crisis, it is argued that a more interventionist state is required to grapple with climate emergency.