10 documents found, page 1 of 1

Marine forests forever—A necessary multilateral program for a fair future

Not only advances but also old addictions, setbacks, obstructions and delays are observed during COP16 (on biodiversity), COP29 (on climate change) and G20 in a year full of tragedies resulting from climate change; we need to look in the rearview mirror and plan new paths to be presented and discussed at COP30, in 2025, in the Brazilian Amazon. Worldwide temperature records show that 2023 and 2024 were the warm...

Long range gene flow beyond predictions from oceanographic transport in a tropi...

The transport of passively dispersed organisms across tropical margins remains poorly understood. Hypotheses of oceanographic transportation potential lack testing with large scale empirical data. To address this gap, we used the seagrass species, Halodule wrightii, which is unique in spanning the entire tropical Atlantic. We tested the hypothesis that genetic differentiation estimated across its large-scale bi...

Oil spill in South Atlantic (Brazil): Environmental and governmental disaster

In early September 2019, dense crude oil began to wash the beaches of Brazil's tropical coast. Four months after the first report, the oil has already been found along >3000 km of the Brazilian coastline on >980 beaches and was recently observed along the Amazon coast, making this oil spill the most extensive and severe environmental disaster ever recorded in Brazilian history, in the South Atlantic basin, and ...

The effect of variable renewable energy sources on electricity price volatility...

The relationship between variable renewable energy supply (V-RES) and electricity price volatility is a controversial issue in the economic literature. In general, the literature has been inconclusive about the sign of the impact of installed capacity of these technologies on price volatility. This paper investigates the impact of V-RES on price volatility for the Iberian Market of Electricity (MIBEL), in the p...

Seagrass can mitigate negative ocean acidification effects on calcifying algae

The ultimate effect that ocean acidification (OA) and warming will have on the physiology of calcifying algae is still largely uncertain. Responses depend on the complex interactions between seawater chemistry, global/local stressors and species-specific physiologies. There is a significant gap regarding the effect that metabolic interactions between coexisting species may have on local seawater chemistry and t...

Tapete de algas invade mar de Fernando de Noronha. [Depoimento a Lucas Reis e G...

Seasonal and depth-driven changes in rhodolith bed structure and associated mac...

Texto completo: acesso restrito. p. 62–65; Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2014-04-10T11:39:18Z No. of bitstreams: 1 1-s2.0-S0304377013000855-main.pdf: 280418 bytes, checksum: 3add9d2a7681790be37286bc212106ef (MD5); Approved for entry into archive by Alda Lima da Silva (sivalda@ufba.br) on 2014-04-22T18:33:03Z (GMT) No. of bitstreams: 1 1-s2.0-S0304377013000855-main.pdf: 280418 bytes, checks...

Contagion effects of the subprime crisis in the European NYSE Euronext markets

This paper presents three tests of contagion of theUS subprime crisis to the European stock markets of the NYSE Euronext group. Copula models are used to analyse dependence structures between the US and the other stock markets in the sample, in the pre-crisis and in the subprime crisis periods. The first test assesses the existence of contagion on the relevant stock markets’ indices, the second checks the homog...

Contagion effects of the US subprime crisis in developed countries

This study assesses whether capital markets of developed countries reflect the effects of financial contagion from the US subprime crisis and, in such case, if the intensity of contagion differs across countries. Adopting a definition of contagion that relates the phenomenon to an increase of cross-market linkages following a shock, copula models are used to analyse how the connections between the US and each m...

Contagion effects of the subprime crisis in the European NYSE Euronext markets

This paper presents three tests of contagion of theUS subprime crisis to the European stock markets of the NYSE Euronext group. Copula models are used to analyse dependence structures between the US and the other stock markets in the sample, in the pre-crisis and in the subprime crisis periods. The first test assesses the existence of contagion on the relevant stock markets’ indices, the second checks the homog...