Climate change has resulted in an increase in temperature of 2.3 °C (2022) in Europe compared to pre-industrial levels. Europe is the fastest warming continent in the world.^[7] Europe's climate is getting warmer due to anthropogenic activity. According to international climate experts, global temperature rise should not exceed 2 °C to prevent the most dangerous consequences of climate change; without reduction in greenhouse gas emissions, this could happen before 2050.^[8][9] Climate change has implications for all regions of Europe, with the extent and nature of impacts varying across the continent.

Impacts on European countries include warmer weather and increasing frequency and intensity of extreme weather such as heat waves, bringing health risks and impacts on ecosystems. European countries are major contributors to global greenhouse gas emissions, although the European Union and governments of several countries have outlined plans to implement climate change mitigation and an energy transition in the 21st century, the European Green Deal being one of these. The European Union commissioner of climate action is Frans Timmermans since 1 December 2019.^[10]

Public opinion in Europe shows concern about climate change; in the European Investment Bank's Climate Survey of 2020, 90% of Europeans believe their children will experience the effects of climate change in their daily lives.^[11] Climate change activism and businesses shifting their practices has taken place in Europe.

Renewable energy plays an important and growing role in the energy system of the European Union. The Europe 2020 strategy included a target of reaching 20% of gross final energy consumption from renewable sources by 2020, and at least 32% by 2030.^[16] The EU27 reached 22% in 2020 and 23% in 2022, up from 9.6% in 2004.^[17] These figures are based on energy use in all its forms across all three main sectors, the heating and cooling sector, the electricity sector, and the transport sector.

The main source of renewable energy in 2019 was biomass (57.4% of gross energy consumption).^[18] In particular, wood is the leading source of renewable energy in Europe, far ahead of solar and wind.^[19] In 2020, renewables provided 23.1% of gross energy consumption in heating and cooling. In electricity, renewables accounted for 37.5% of gross energy consumption, led by wind (36%) and hydro-power (33%), followed by solar (14%), solid biofuels (8%) and other renewable sources (8%). In transport, the share of renewable energy used reached 10.2%.^[20]

The share of renewable energy has grown in all member states since 2004. The leading state is Sweden, with 66% of its energy provided by renewable sources as of 2022, followed by Finland (47.9%), Latvia (43.3%), and Denmark (41.6%). The lowest proportion was recorded in Ireland (13.1%), followed by Malta (13.4%), Belgium (13.8%), and Luxembourg (14.4%).

The renewable energy directive enacted in 2009 lays out a framework for individual member states to share the overall EU-wide 20% renewable energy target for 2020.^[21] Promoting the use of renewable energy sources is important both to the reduction of the EU's energy dependence and in meeting targets to combat global warming. The directive sets targets for each individual member state taking into account the different starting points and potentials.^[21] Targets for renewable energy use by 2020 among different member states varied from 10% to 49%.^[21] 26 EU member states met their national 2020 targets. The sole exception was France, which had aimed for 23% but only reached 19.1%. By 2022, Austria, Ireland, and Slovenia had dropped below their 2020 targets.^[17]

In 2023, energy costs increased for 83% of EU enterprises, and by more than 25% for 68% of EU firms. Electricity rates in the European Union are typically three times higher than in the United States for example.^[22] Companies therefore increased their investment in energy efficiency, and spending in energy efficiency has increased to 51%. 78% of EU enterprises have implemented energy-saving measures in response to changes in the energy markets.^[22][23][24]

The European Green Deal, approved in 2020, is a set of policy initiatives by the European Commission with the overarching aim of making the European Union (EU) climate neutral in 2050.^[26][27] The plan is to review each existing law on its climate merits, and also introduce new legislation on the circular economy, building renovation, biodiversity, farming and innovation.^[27]

The president of the European Commission, Ursula von der Leyen, stated that the European Green Deal would be Europe's "man on the moon moment".^[27] On 13 December 2019, the European Council decided to press ahead with the plan, with an opt-out for Poland.^[28] On 15 January 2020, the European Parliament voted to support the deal as well, with requests for higher ambition.^[29] A year later, the European Climate Law was passed, which legislated that greenhouse gas emissions should be 55% lower in 2030 compared to 1990. The Fit for 55 package is a large set of proposed legislation detailing how the European Union plans to reach this target.^[30]

The European Commission's climate change strategy, launched in 2020, is focused on a promise to make Europe a net-zero emitter of greenhouse gases by 2050 and to demonstrate that economies will develop without increasing resource usage. However, the Green Deal has measures to ensure that nations that are already reliant on fossil fuels are not left behind in the transition to renewable energy.^[31][32][33] The green transition is a top priority for Europe. The EU Member States want to reduce greenhouse gas emissions by 55% by 2030 from 1990 levels, and become climate neutral by 2050.^{[34][35][36][37]}

Von der Leyen appointed Frans Timmermans as Executive Vice President of the European Commission for the European Green Deal in 2019. He was succeeded by Maroš Šefčovič in 2023.^[38]

A pesticide, also called Plant Protection Product (PPP), which is a term used in regulatory documents, consists of several different components. The active ingredient in a pesticide is called “active substance” and these active substances either consist of chemicals or micro-organisms. The aims of these active substances are to specifically take action against organisms that are harmful to plants (Art. 2(2), Regulation (EC) No 1107/2009^[39]). In other words, active substances are the active components against pests and plant diseases.

In the Regulation (EC) No 1107/2009,^[39] a pesticide is defined based on how it is used. Thus, pesticides have to fulfill certain criteria in order to be called pesticides. Among others, the criteria include that they either protect plants against harmful organisms - by killing or in other ways preventing the organism from performing harm, that they enhance the natural ability of plants to defend themselves against these harmful organisms, or that they kill off competing plants such as weeds.

Within the European Union a 2-tiered approach is used for the approval and authorisation of pesticides. Firstly, before an actual pesticide can be developed and put on the European market, the active substance of the pesticide needs to be approved for the European Union. Only after approval of an active substance, a procedure of approval of the Plant Protection Product (PPP) can begin in the individual Member States. In case of approval, there is a monitoring programme to make sure the pesticide residues in food are below the limits set by the European Food Safety Authority (EFSA).

The use of PPPs (i.e. pesticides) in the European Union (EU) is regulated by the Regulation No 1107/2009^[39] on Plant Protection Products in cooperation with other EU Regulations and Directives (e.g. the regulation on maximum residue levels in food (MRL); Regulation (EC) No 396/2005,^[40] and the Directive on sustainable use of pesticides; Directive 2009/128/EC).^[41] These regulatory documents are set to ensure safe use of pesticides in the EU regarding human health and environmental sustainability. The responsible authorities within the EU working with pesticide regulation are the European Commission, European Food Safety Authority (EFSA), European Chemical Agency (ECHA); working in cooperation with the EU Member States. Additionally, important stakeholders are the chemical producing companies, which develop PPPs and active substances that are to be evaluated by the regulatory authorities mentioned above.

Conservative Agriculture Spokesman Anthea McIntyre MEP and colleague Daniel Dalton MEP ^[42] were appointed to the European Parliament's special committee on pesticides on the 16th of March 2018. Sitting for nine months, the committee will examine the scientific evaluation of glyphosate, the world's most commonly used weed killer which was relicensed for five years by the EU in December after months of uncertainty. They will also consider wider issues around the authorisation of pesticides.

In 2016, following the EU Regulation 1143/2014^[43] on Invasive Alien Species (IAS), the European Commission published a first list of 37 IAS of Union concern.^[44] The list was first updated in 2017^[45] and comprised 49 species. Since the second update in 2019,^[46] 66 species are listed as IAS of EU concern. Since the third update in 2022,^[47] 88 species are listed as IAS of EU concern, although the final inclusion of 4 of these species has been deferred to 2024 (3) and 2027 (1).

The species on the list are subject to restrictions on keeping, importing, selling, breeding and growing. Member States of the European Union must take measures to stop their spread, implement monitoring and preferably eradicate these species. Even if they are already widespread in the country they are expected to manage the species to avoid further spread.^[48]

The European Environment Agency (EEA) is the agency of the European Union (EU) which provides independent information on the environment.

The European Climate Change Programme (ECCP) was launched in June 2000 by the European Union's European Commission, with the purpose of avoiding dangerous climate change.

The goal of the ECCP is to identify, develop and implement all the necessary elements of an EU strategy to implement the Kyoto Protocol. All EU countries' ratifications of the Kyoto Protocol were deposited simultaneously on 31 May 2002. The ECCP involved all the relevant stakeholders working together, including representatives from Commission's different departments, the member states, industry and environmental groups.^[49]

The European Union Emissions Trading System for greenhouse gases (EU ETS) is perhaps the most significant contribution of the ECCP, and the EU ETS is the largest greenhouse gas emissions trading scheme in the world.

In 1996 the EU adopted a target of a maximum 2 °C rise in global mean temperature, compared to pre-industrial levels. Since then, European Leaders have reaffirmed this goal several times.^[50][51][52] Due to only minor efforts in global Climate change mitigation it is highly likely that the world will not be able to reach this particular target. The EU might then be forced to accept a less ambitious target or to change its climate policy paradigm.^[53]

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Directorate-General for Environment (DG ENV) is a Directorate-General of the European Commission, responsible for the Environmental policy of the European Union. In 2010 "relevant [climate change] activities in DG Environment" were moved to the new DG Climate Action (DG CLIMA).^[54] At the same time the DG Energy (ENER) was also established. The 2022 commissioner was Virginijus Sinkevičius.