Why did some governments and kings have difficulty agreeing to fund explorations?

The navigational tools provided were inaccurate, Financial risks, and the explorers only had limited knowledge of the geography of the world, so the possibility of them getting lost was high.

the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.

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