BERLIN (Reuters) – The Group of Seven countries on Friday agreed stringent environmental controls should govern deep-sea mining and that they would consent to such mining projects only if they did not seriously harm the marine environment. “We determined that if there is deep-sea mining at all, it should only happen under the most strict environmental standards,” Germany’s environment minister, Steffi Lemke, told a news conference after a meeting of G7 ministers in Berlin. The International Seabed Authority (ISA), a United Nations body, is drawing up regulations governing seabed mining in the …