Why did gas hydrates melt at the end of the last ice age?

Methane hydrates, also known as “burning ice,” occur at all ocean margins. The compound of gas and water occurs in the seafloor and it is only stable under relatively high pressures and low temperatures. If the pressure is too low or the temperature too high, the hydrates dissociate (break down), the methane is released and the gas can seep from the seafloor into the ocean. Thus, scientists fear that warming of global water temperatures could destabilize gas hydrates on a large scale. At the same time, it is not fully understood what factors influence the stability of gas hydrates.