The economy of Houston is based primarily on the energy industry, particularly oil. However, health care, biomedical research, and aerospace also constitute large sectors.

Field Marshal Horatio Herbert Kitchener, 1st Earl Kitchener (; 24 June 1850 – 5 June 1916) was a British Army officer and colonial administrator. Kitchener came to prominence for his imperial campaigns, his involvement in the Second Boer War, and his central role in the early part of the First World War.

In 2021, net greenhouse gas (GHG) emissions in the United Kingdom (UK) were 427 million tonnes (Mt) carbon dioxide equivalent (CO2e), 80% of which was carbon dioxide (CO2) itself. Emissions increased by 5% in 2021 with the easing of COVID-19 restrictions, primarily due to the extra road transport.

Reliance Industries Limited is an Indian multinational conglomerate headquartered in Mumbai. Its businesses include energy, petrochemicals, natural gas, retail, entertainment, telecommunications, mass media, and textiles.

James Connolly (Irish: Séamas Ó Conghaile; 5 June 1868 – 12 May 1916) was a Scottish-born Irish republican, socialist, and trade union leader, executed for his part in the 1916 Easter Rising against British rule in Ireland. He remains an important figure both for the Irish labour movement and for Irish republicanism.

Repsol S.A. (Spanish pronunciation: [reβˈsol]) is a Spanish multinational energy and petrochemical company based in Madrid. It is engaged in worldwide upstream and downstream activities.

Scottish Power Limited, trading as ScottishPower, is a British vertically integrated energy company headquartered in Glasgow, Scotland. It is a subsidiary of Spanish utility firm Iberdrola.

Fox ESS Co., Ltd. (Chinese: 麦田能源股份有限公司), trading as Fox ESS, is a Chinese manufacturer of photovoltaic inverters and battery energy storage systems headquartered in Wenzhou, Zhejiang.

RenewableUK, formerly known as the British Wind Energy Association (BWEA), is the trade association for wind power, wave power and tidal power industries in the United Kingdom.

Tesla, Inc. is an electric vehicle manufacturer and clean energy company founded in San Carlos, California in 2003 by American entrepreneurs Martin Eberhard and Marc Tarpenning.