Ocean law has developed greatly in the recent years as an area within maritime law and environmental law. The increased attention has been received mainly due to the sea- level rise, ocean acidification and changing ocean currents caused by climate change. The negative impacts of climate change affect a wide spectrum of law and policy and have direct and indirect implications on various aspects such as: international security, food security, shipping, fisheries, marine and coastal governance etc. According to the IPCC 2018 Report, ocean ecosystems are already experiencing large-scale changes and critical thresholds are expected to be reached at higher levels of global warming. The main aim of this article is to present how the ocean law and climate law respond to the regulatory challenges caused by climate change.

The European Green Deal is a strategy aimed at making Europe climate neutral in 2050. This work plan consists of several initiatives: European Climate Law, European Climate Pact, adaptation strategy, Farm-to Fork strategy and task to increase the EU 2030 climate target towards 55%. The aim of this article is to present the aims and structure of the European Green Deal with special notice on actions planed within „blue economy”. The maritime sector will have to play a central role in alleviating the multiple demands on the EU's land resources and tackling climate change by improving the use of aquatic and marine resources.

The high and rapidly increasing demand for maritime space for various purposes, such as: shipping and fishing, production of energy from renewable sources, oil and gas exploitation, environmental conservation, tourism and aquaculture, as well as the multiple pressures on coastal resources, require integrated planning and management approach. In the law of the European Union, maritime governance has been developed in the Integrated Maritime Policy. The aim of this article is to show maritime spatial planning as a tool that enables public authorities to apply an integrated and trans-boundary approach.

The main aim of the maritime spatial planning is to promote sustainable development and growth in the maritime sector, applying an ecosystem-based approach, and to achieve the coexistence of relevant activities and uses. In order to achieve that purpose, Member States should ensure that the planning process results in a comprehensive planning taking into consideration inter alia long-term changes due to climate change.