David Obura
Datos Biográficos
| ID | 3425973 |
|---|---|
| NOMBRE | David Obura |
| NOMBRES | David |
| APELLIDO | Obura |
| FIRMA | OBURA D |
| AFILIACIONES | Coastal Oceans Research and Development in the Indian Ocean |
| ORCID | 0000-0003-2256-6649 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 23 |
| TOTAL DE CITAS | 21 |
| TOTAL COMO AUTOR | 23 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2004 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2025 |
| ÍNDICE H | 3 |
Thresholds of significant harm at global level
The planetary boundary framework proposes ‘safe’ boundaries, but these boundaries are not necessarily ‘just’. Hence, we ask: How has the Earth Commission defined just boundaries building on the concept of minimizing significant harm and how many people are currently exposed to harm above the safe and just threshold? We document the work of the Earth Commission to address these questions using our Earth System Justice framework. We conclude that: …
The human right to a safe climate
Reflections on the Global Biodiversity Framework
Securing Nature’s Contributions to People requires at least 20%–25% (semi-)natural habitat in human-modified landscapes
The cascading effects of biodiversity decline on human well-being present a pressing challenge for sustainable development. Conservation efforts often prioritize safeguarding specific species, habitats, or intact ecosystems but overlook biodiversity’s fundamental role in providing Nature’s Contributions to People (NCP) in human-modified landscapes. Here, we systematically review 154 peer-reviewed studies to estimate the minimum levels of (semi-)n…
Translating Earth system boundaries for cities and businesses
Overcoming the coupled climate and biodiversity crises and their societal impacts
Earth’s biodiversity and human societies face pollution, overconsumption of natural resources, urbanization, demographic shifts, social and economic inequalities, and habitat loss, many of which are exacerbated by climate change. Here, we review links among climate, biodiversity, and society and develop a roadmap toward sustainability. These include limiting warming to 1.5°C and effectively conserving and restoring functional ecosystems on 30 to …
Safe and just Earth system boundaries
The stability and resilience of the Earth system and human well-being are inseparably linked 1–3 , yet their interdependencies are generally under-recognized; consequently, they are often treated independently 4,5 . Here, we use modelling and literature assessment to quantify safe and just Earth system boundaries (ESBs) for climate, the biosphere, water and nutrient cycles, and aerosols at global and subglobal scales. We propose ESBs for maintain…
The Kunming-Montreal Global Biodiversity Framework
Earth system justice needed to identify and live within Earth system boundaries
Living within the safe and just Earth system boundaries for blue water
Safe and just Earth system boundaries (ESBs) for surface water and groundwater (blue water) have been defined for sustainable water management in the Anthropocene. Here we assessed whether minimum human needs could be met with surface water from within individual river basins alone and, where this is not possible, quantified how much groundwater would be required. Approximately 2.6 billion people live in river basins where groundwater is needed b…
Thirteen steps to transformation
Equity and Justice should underpin the discourse on Tipping Points
Radical and quick transformations towards sustainability have winners and losers, with equity and justice embedded to a greater or a lesser extent. According to research, only the wealthiest 1-4 % of the global population will radically need to change their consumption, behaviours, societal values and beliefs in order to make space for an equitable and sustainable future for nature and people. However, narratives around many 'positive' tipping po…
Achieving global biodiversity goals by 2050 requires urgent and integrated actions
Achieving a nature- and people-positive future
Despite decades of increasing investment in conservation, we have not succeeded in ''bending the curve'' of biodiversity decline. Efforts to meet new targets and goals for the next three decades risk repeating this outcome due to three factors: neglect of increasing drivers of decline; unrealistic expectations and time frames of biodiversity recovery; and insufficient attention to justice within and between generations and across countries. Our E…
Identifying a Safe and Just Corridor for People and the Planet
Keeping the Earth system in a stable and resilient state, to safeguard Earth's life support systems while ensuring that Earth's benefits, risks, and related responsibilities are equitably shared, constitutes the grand challenge for human development in the Anthropocene. Here, we describe a framework that the recently formed Earth Commission will use to define and quantify target ranges for a “safe and just corridor” that meets these goals. Althou…
Reconciling safe planetary targets and planetary justice
As human activity threatens to make the planet unsafe for humanity and other life forms, scholars are identifying planetary targets set at a safe distance from biophysical thresholds beyond which critical Earth systems may collapse. Yet despite the profound implications that both meeting and transgressing such targets may have for human wellbeing, including the potential for negative trade-offs, there is limited social science analysis that syste…
Vulnerability to collapse of coral reef ecosystems in the Western Indian Ocean
Ecosystems worldwide are under increasing threat. We applied a standardized method for assessing the risk of ecosystem collapse, the International Union for Conservation of Nature (IUCN) Red List of Ecosystems, to coral reefs in the Western Indian Ocean (WIO), covering 11,919 km 2 of reef (~5% of the global total). Our approach combined indicators of change in historic ecosystem extent, ecosystem functioning (hard corals, fleshy algae, herbivores…
Ten years to restore a planet
Pervasive human-driven decline of life on Earth points to the need for transformative change
The time is now For decades, scientists have been raising calls for societal changes that will reduce our impacts on nature. Though much conservation has occurred, our natural environment continues to decline under the weight of our consumption. Humanity depends directly on the output of nature; thus, this decline will affect us, just as it does the other species with which we share this world. Díaz et al. review the findings of the largest asses…
Observations, indicators and scenarios of biodiversity and ecosystem services change — a framework to support policy and decision-making
Essential Biodiversity Variables
A global system of harmonized observations is needed to inform scientists and policy-makers.
The Negative Impacts of Human Activities in the Eastern African Region
The complex interactions between human activities and the environment at the interface of land and water is analyzed with a focus on the Somali Current (East Africa), and Indian Ocean Island States, subregions of the Global International Waters Assessment (GIWA). These 2 subregions contain some of the world's richest ecosystems, including the high biodiversity forests of Madagascar and the diverse coastal habitats of the eastern African coast. Th…
The Negative Impacts of Human Activities in the Eastern African Region
The complex interactions between human activities and the environment at the interface of land and water is analyzed with a focus on the Somali Current (East Africa), and Indian Ocean Island States, subregions of the Global International Waters Assessment (GIWA). These 2 subregions contain some of the world's richest ecosystems, including the high biodiversity forests of Madagascar and the diverse coastal habitats of the eastern African coast. Th…
Earth system justice needed to identify and live within Earth system boundaries
Translating Earth system boundaries for cities and businesses
Reconciling safe planetary targets and planetary justice
As human activity threatens to make the planet unsafe for humanity and other life forms, scholars are identifying planetary targets set at a safe distance from biophysical thresholds beyond which critical Earth systems may collapse. Yet despite the profound implications that both meeting and transgressing such targets may have for human wellbeing, including the potential for negative trade-offs, there is limited social science analysis that syste…
Living within the safe and just Earth system boundaries for blue water
Safe and just Earth system boundaries (ESBs) for surface water and groundwater (blue water) have been defined for sustainable water management in the Anthropocene. Here we assessed whether minimum human needs could be met with surface water from within individual river basins alone and, where this is not possible, quantified how much groundwater would be required. Approximately 2.6 billion people live in river basins where groundwater is needed b…
Vulnerability to collapse of coral reef ecosystems in the Western Indian Ocean
Ecosystems worldwide are under increasing threat. We applied a standardized method for assessing the risk of ecosystem collapse, the International Union for Conservation of Nature (IUCN) Red List of Ecosystems, to coral reefs in the Western Indian Ocean (WIO), covering 11,919 km 2 of reef (~5% of the global total). Our approach combined indicators of change in historic ecosystem extent, ecosystem functioning (hard corals, fleshy algae, herbivores…
The Negative Impacts of Human Activities in the Eastern African Region
The complex interactions between human activities and the environment at the interface of land and water is analyzed with a focus on the Somali Current (East Africa), and Indian Ocean Island States, subregions of the Global International Waters Assessment (GIWA). These 2 subregions contain some of the world's richest ecosystems, including the high biodiversity forests of Madagascar and the diverse coastal habitats of the eastern African coast. Th…
The Negative Impacts of Human Activities in the Eastern African Region
The complex interactions between human activities and the environment at the interface of land and water is analyzed with a focus on the Somali Current (East Africa), and Indian Ocean Island States, subregions of the Global International Waters Assessment (GIWA). These 2 subregions contain some of the world's richest ecosystems, including the high biodiversity forests of Madagascar and the diverse coastal habitats of the eastern African coast. Th…
The Negative Impacts of Human Activities in the Eastern African Region
The complex interactions between human activities and the environment at the interface of land and water is analyzed with a focus on the Somali Current (East Africa), and Indian Ocean Island States, subregions of the Global International Waters Assessment (GIWA). These 2 subregions contain some of the world's richest ecosystems, including the high biodiversity forests of Madagascar and the diverse coastal habitats of the eastern African coast. Th…
Essential Biodiversity Variables
A global system of harmonized observations is needed to inform scientists and policy-makers.
Observations, indicators and scenarios of biodiversity and ecosystem services change — a framework to support policy and decision-making
Pervasive human-driven decline of life on Earth points to the need for transformative change
The time is now For decades, scientists have been raising calls for societal changes that will reduce our impacts on nature. Though much conservation has occurred, our natural environment continues to decline under the weight of our consumption. Humanity depends directly on the output of nature; thus, this decline will affect us, just as it does the other species with which we share this world. Díaz et al. review the findings of the largest asses…
Ten years to restore a planet
Identifying a Safe and Just Corridor for People and the Planet
Keeping the Earth system in a stable and resilient state, to safeguard Earth's life support systems while ensuring that Earth's benefits, risks, and related responsibilities are equitably shared, constitutes the grand challenge for human development in the Anthropocene. Here, we describe a framework that the recently formed Earth Commission will use to define and quantify target ranges for a “safe and just corridor” that meets these goals. Althou…
Reconciling safe planetary targets and planetary justice
As human activity threatens to make the planet unsafe for humanity and other life forms, scholars are identifying planetary targets set at a safe distance from biophysical thresholds beyond which critical Earth systems may collapse. Yet despite the profound implications that both meeting and transgressing such targets may have for human wellbeing, including the potential for negative trade-offs, there is limited social science analysis that syste…
Vulnerability to collapse of coral reef ecosystems in the Western Indian Ocean
Ecosystems worldwide are under increasing threat. We applied a standardized method for assessing the risk of ecosystem collapse, the International Union for Conservation of Nature (IUCN) Red List of Ecosystems, to coral reefs in the Western Indian Ocean (WIO), covering 11,919 km 2 of reef (~5% of the global total). Our approach combined indicators of change in historic ecosystem extent, ecosystem functioning (hard corals, fleshy algae, herbivores…
Achieving global biodiversity goals by 2050 requires urgent and integrated actions
Achieving a nature- and people-positive future
Despite decades of increasing investment in conservation, we have not succeeded in ''bending the curve'' of biodiversity decline. Efforts to meet new targets and goals for the next three decades risk repeating this outcome due to three factors: neglect of increasing drivers of decline; unrealistic expectations and time frames of biodiversity recovery; and insufficient attention to justice within and between generations and across countries. Our E…
Overcoming the coupled climate and biodiversity crises and their societal impacts
Earth’s biodiversity and human societies face pollution, overconsumption of natural resources, urbanization, demographic shifts, social and economic inequalities, and habitat loss, many of which are exacerbated by climate change. Here, we review links among climate, biodiversity, and society and develop a roadmap toward sustainability. These include limiting warming to 1.5°C and effectively conserving and restoring functional ecosystems on 30 to …
Safe and just Earth system boundaries
The stability and resilience of the Earth system and human well-being are inseparably linked 1–3 , yet their interdependencies are generally under-recognized; consequently, they are often treated independently 4,5 . Here, we use modelling and literature assessment to quantify safe and just Earth system boundaries (ESBs) for climate, the biosphere, water and nutrient cycles, and aerosols at global and subglobal scales. We propose ESBs for maintain…
The Kunming-Montreal Global Biodiversity Framework
Earth system justice needed to identify and live within Earth system boundaries
Living within the safe and just Earth system boundaries for blue water
Safe and just Earth system boundaries (ESBs) for surface water and groundwater (blue water) have been defined for sustainable water management in the Anthropocene. Here we assessed whether minimum human needs could be met with surface water from within individual river basins alone and, where this is not possible, quantified how much groundwater would be required. Approximately 2.6 billion people live in river basins where groundwater is needed b…
Thirteen steps to transformation
Equity and Justice should underpin the discourse on Tipping Points
Radical and quick transformations towards sustainability have winners and losers, with equity and justice embedded to a greater or a lesser extent. According to research, only the wealthiest 1-4 % of the global population will radically need to change their consumption, behaviours, societal values and beliefs in order to make space for an equitable and sustainable future for nature and people. However, narratives around many 'positive' tipping po…
Reflections on the Global Biodiversity Framework
Securing Nature’s Contributions to People requires at least 20%–25% (semi-)natural habitat in human-modified landscapes
The cascading effects of biodiversity decline on human well-being present a pressing challenge for sustainable development. Conservation efforts often prioritize safeguarding specific species, habitats, or intact ecosystems but overlook biodiversity’s fundamental role in providing Nature’s Contributions to People (NCP) in human-modified landscapes. Here, we systematically review 154 peer-reviewed studies to estimate the minimum levels of (semi-)n…
Translating Earth system boundaries for cities and businesses
Thresholds of significant harm at global level
The planetary boundary framework proposes ‘safe’ boundaries, but these boundaries are not necessarily ‘just’. Hence, we ask: How has the Earth Commission defined just boundaries building on the concept of minimizing significant harm and how many people are currently exposed to harm above the safe and just threshold? We document the work of the Earth Commission to address these questions using our Earth System Justice framework. We conclude that: …
The human right to a safe climate
Biology (11 obras) · Ecology (10 obras) · Biodiversity (9 obras) · Environmental resource management (9 obras) · Environmental Science (9 obras) · Geography (9 obras) · Political science (8 obras) · Environmental planning (7 obras) · Business (6 obras) · Climate change (6 obras)